View source for 1970 United States Senate elections

{{Short description|none}}
{{Use mdy dates|date=September 2023}}
{{Infobox election
 | election_name      = 1970 United States Senate elections
 | country            = United States
 | type               = legislative
 | ongoing            = no
 | previous_election  = 1968 United States Senate elections
 | previous_year      = 1968
 | next_election      = 1972 United States Senate elections
 | next_year          = 1972
 | seats_for_election = 35 of the 100 seats in the [[United States Senate]]
 | majority_seats     = 51
 | election_date      = November 3, 1970
 | image_size         = x180px
 | 1blank             = Seats up
 | 2blank             = Races won
 | party1             = Democratic Party (United States)
 | image1             = Mike Mansfield 1985 (cropped 3x4).png
 | leader1            = [[Mike Mansfield]]
 | leader_since1      = January 3, 1961
 | leaders_seat1      = [[List of United States senators from Montana|Montana]]
 | seats_before1      = '''57'''
 | seats_after1       = '''54'''
 | seat_change1       = {{decrease}} 3
 | popular_vote1      = '''25,435,247'''<ref name="Clerk"/>
 | percentage1        = '''52.4%'''
 | 1data1             = '''24'''
 | 2data1             = '''22'''
 | party2             = Republican Party (United States)
 | image2             = SenHughScott.jpg
 | leader2            = [[Hugh Scott]]
 | leader_since2      = September 24, 1969
 | leaders_seat2      = [[List of United States senators from Pennsylvania|Pennsylvania]]
 | seats_before2      = 43
 | seats_after2       = 44
 | seat_change2       = {{increase}} 1
 | popular_vote2      = 19,373,972<ref name="Clerk"/>{{efn|name="NY alliance"}}
 | percentage2        = 39.9%
 | 1data2             = 10
 | 2data2             = 11
 | party4             = Conservative Party of New York State
 | seats_before4      = 0
 | seats_after4       = [[James L. Buckley|1]]
 | seat_change4       = {{increase}} 1
 | popular_vote4      = 2,183,572<ref name="Clerk"/>
 | percentage4        = 4.5%
 | 1data4             = 0
 | 2data4             = [[#New York|1]]
 | party5             = Independent
 | seats_before5      = 0
 | seats_after5       = [[Harry F. Byrd Jr.|1]]<ref name="ByrdDem">[[Harry F. Byrd Jr.|Harry F. Byrd, Jr.]] (VA), was an Independent who caucused with the Democrats. In some circles, he is called an "Independent Democrat", but his actual registration was listed as "Independent". See, e. g., {{Biographical Directory of Congress | id=B001209 | inline=yes | name=Harry Flood Byrd, Jr.}}</ref>
 | seat_change5       = {{increase}} 1
 | popular_vote5      = 516,149<ref name="Clerk"/>
 | percentage5        = 1.1%
 | 1data5             = 1
 | 2data5             = [[#Virginia|1]]
 | map_image          = {{1970 United States Senate elections imagemap}}
 | map_size           = 320px
 | map_caption        = '''Results of the elections:'''<br />{{legend0|#0671B0|Democratic gain}} {{legend0|#92C5DE|Democratic hold}}<br />{{legend0|#CA0120|Republican gain}} {{legend0|#F48882|Republican hold}}<br />{{legend0|#666666|Independent gain}}<br />{{Legend0|#E66101|Conservative gain}}<br />{{legend0|#D3D3D3|No election}}
 | title              = [[Majority Leader of the United States Senate|Majority Leader]]
 | before_election    = [[Mike Mansfield]]
 | before_party       = Democratic Party (US)
 | after_election     = [[Mike Mansfield]]
 | after_party        = Democratic Party (US)
}}
The '''1970 United States Senate elections''' was an election for the [[United States Senate]]. It took place on November 3, with the 33 seats of [[Classes of United States senators|Class 1]] contested in regular elections. Special elections were also held to fill vacancies. These races occurred in the [[mid-term election|middle]] of [[Richard Nixon]]'s first term as [[President of the United States|president]]. The [[Democratic Party (United States)|Democrats]] lost a net of three seats, while the [[Republican Party (United States)|Republicans]] and the [[Conservative Party of New York]] picked up one net seat each, and former Democrat [[Harry F. Byrd Jr.]] was re-elected as an [[Independent (politician)|independent]].

This was the first time that Republicans gained Senate seats while losing House seats, which also occurred in [[2018 United States elections|2018]]. This also occurred for Democrats in 1914, 1962, and 2022.<ref>{{cite news |last1=Kane |first1=Paul |title=Stark political divide points to a split decision in midterm elections |url=https://www.washingtonpost.com/powerpost/stark-political-divide-points-to-a-split-decision-in-midterm-elections/2018/10/12/d98bbc60-c686-11e8-b1ed-1d2d65b86d0c_story.html |access-date=1 June 2020 |newspaper=The Washington Post  |date=13 October 2018 |ref=splitdecision}}</ref>

This was the most recent election in which a [[Third party (United States)|third party]] won a seat in the [[United States Senate|Senate]] until [[2006 United States Senate election in Connecticut|2006]]. {{As of|{{CURRENTYEAR}}}}, this is also the most recent cycle in which Democrats won Senate elections in [[Utah]] and [[Wyoming]], and the most recent in which Republicans won a Senate election in [[Hawaii]].

Since the deaths of [[Lowell Weicker]] and [[James L. Buckley]] in 2023, this is the latest Senate election cycle where all first-elected members are deceased.

==Results summary==
{| style="width:50em; text-align:center"
|+ ↓
|- style="color:white"
| style="background:{{party color|Democratic Party (US)}}; width:54%" | '''54'''
| style="background:{{party color|Independent}}; width:1%" | '''1'''
| style="background:{{party color|Conservative Party (New York)}}; width:1%" | '''1'''
| style="background:{{party color|Republican Party (US)}}; width:44%" | '''44'''
|-
| <span style="color:{{party color|Democratic Party (US)}}">'''Democratic'''</span>
| '''I'''
| '''C'''
| <span style="color:{{party color|Republican Party (US)}}">'''Republican'''</span>
|}

{| class=wikitable style=text-align:center

|- valign=bottom
! rowspan=2 colspan=2 | Parties
| style="background-color:{{party color|Democratic Party (US)}}" |
| style="background-color:{{party color|Republican Party (US)}}" |
| style="background-color:{{party color|Conservative Party (New York)}}" |
| style="background-color:{{party color|Independent}}" |
| style="background-color:{{party color|Other Party (US)}}" | 
! rowspan=2 | Total

|- valign=bottom
! [[Democratic Party (United States)|Democratic]]
! [[Republican Party (United States)|Republican]]
! [[Conservative Party (New York)|Conservative]]
! Independent
! Other

|-
! colspan=2 | [[1968 United States Senate elections|Last elections (1968)]]
| {{party shading/Democratic}} | 58
| 42
| 0
| 0
| 0
! 100

|-
! colspan=2 | Before these elections
| {{party shading/Democratic}} | 57
| 43
| 0
| 0
| 0
! 100

|-
! colspan=2 style="background:#bbb" | Not up
| 32
| {{party shading/Republican}} | 33
| —
| 0
| —
! 65

|-
| colspan=100 |

|-
! colspan=2 style="background:#bbb" | Up
| {{party shading/Democratic}} | 25
| 10
| —
| —
| —
! 35

|-
! colspan=2 | {{Small|Class 1 ([[1964 United States Senate elections|1964]]→1970)}}
| {{party shading/Democratic}} | 25
| 8
| —
| —
| —
! 33

|-
! colspan=2 | {{Small|Special: Class 2}}
| 0
| {{party shading/Republican}} | 1
| —
| 0
| —
! 1

|-
! colspan=2 | {{Small|Special: Class 3}}
| 0
| {{party shading/Republican}} | 1
| —
| 0
| —
! 1

|-
| colspan=100 |

|-
! colspan=2 style="background:#ccc" | Incumbent retired
| {{party shading/Democratic}} | 3
| 1
| —
| 0
| —
! 4

|-
! rowspan=3 | 
! {{small|Held by same party}}
| {{party shading/Democratic}} | 2
| 1
| —
| —
| —
! 3

|-
! {{small|Replaced by other party}}
| colspan=2 {{party shading/Republican}} | {{Decrease}} 1 Democrat replaced by {{increase}} 1 Republican<!--OH-->
| —
| —
| —
! 1

|-
! Result
! 2
! 2
! 0
! 0
! 0
! 4

|-
! colspan=2 style="background:#ccc" | Incumbent ran
| {{party shading/Democratic}} | 22{{efn|In [[#Texas|Texas]], [[Ralph Yarborough]] lost renomination for another term, [[Lloyd Bentsen]] became the party's new nominee.}}{{efn|name=Appointees|Includes three interim appointees who ran for election.}}
| 9{{efn|name=Appointees}}
| —
| —
| —
! 31

|-
! rowspan=6 |
! {{small|Won re-election}}
| {{party shading/Democratic}} | 17
| 6{{efn|Includes the interim appointee who won election to finish the term.}}
| —
| —
| —
! 23

|-
! {{small|Won re-election but changed party}}
| colspan="4" {{party shading/Independent}} | {{Decrease}} 1 Democrat re-elected as an {{increase}} Independent<!-- VA -->
| —
! 1

|-
! {{small|Lost re-election}}
| colspan=3 | {{Decrease}} 2 Republicans replaced by {{increase}} 2 Democrats<!--CA, IL--><br />{{Decrease}} 3 Democrats replaced by {{increase}} 3 Republicans<!--CT (Dodd as Ind), MD, TN--><br />{{Decrease}} 1 Republican replaced by {{increase}} 1 Conservative<!--NY-->
| —
| —
! 6

|-
! {{Small|Lost renomination,<br />but held by same party}}
| {{party shading/Democratic}} | 1<!--TX-->
| 0
| —
| —
| —
! 1

|-
! Result
! {{party shading/Democratic}} | 20
! 9
! 1
! 1
! 0
! 31

|-
| colspan=100 |

|-
! colspan=2 | Total elected
! {{party shading/Democratic}} | 22
! 11
! 1
! 1
! 0
! 35

|-
! colspan=2 | Net gain/loss
| {{Decrease}} 3
| {{Increase}} 1
| {{Increase}} 1
| {{Increase}} 1
| {{Steady}}
! 2

|-
! colspan=2 style="background:#ccc" | Nationwide vote
| {{party shading/Democratic}} | 25,435,247
| 19,373,972{{efn|name="NY alliance"|The [[Liberal Party of New York|Liberal Party]] in [[#New York|New York]] nominated [[Charles Goodell]], a Republican, but the Clerk of the U.S. House of Representatives did not tabulate their votes, totaling {{formatnum:225793}}, into the national Republican total.<ref name="Clerk"/>}}
| 2,183,572
| 516,149
| 1,049,884
! 48,558,824

|-
! <!-- Gap for "Nationwide vote" -->
! Share
| {{party shading/Democratic}} | 52.38%
| 39.90%
| 4.50%
| 1.06%
| 2.16%
! 100%

|-
! colspan=2 | Result
! {{party shading/Democratic}} | 54
! 44
! 1
! 1
! 0
! 100

|}

Source: Office of the Clerk<ref name="Clerk">{{cite web |author1=[[Clerk of the United States House of Representatives]] |title=STATISTICS OF THE CONGRESSIONAL ELECTION OF NOVEMBER 3, 1970 |url=https://history.house.gov/Institution/Election-Statistics/1970election/ |publisher=United States House of Representatives |page=1<!--AK special-->, 39<!--National totals (Class I regular and IL special elections only)--> |date=1971-05-01 |access-date=22 November 2020 |format=PDF}}</ref>

==Getting out the vote==
President Nixon said that rather than violent protests, the best way for the American public to get their opinion heard was by voting:
{{blockquote
| The most powerful four letter word is a clean word, it’s the most powerful four letter word in the history of men, it's called vote. V-O-T-E. My friends, I say that the answer to those that engage in disruption, to those that shout their filthy slogans, to those that try to shout down speakers, it's not to answer in kind, but go to the polls in election day, and in the quiet of that ballot box, stand up and be counted, the great silent majority of America.
| [[Richard Nixon]]|{{Cite web |title=1970 Election: 1970 Year in Review |url=http://www.upi.com/Audio/Year_in_Review/Events-of-1970/Apollo-13/12303235577467-2 |publisher=UPI.com}}
}}

== Gains, losses, and holds ==
===Retirements===
One Republican and three Democrats retired instead of seeking re-election.

{| class="wikitable sortable plainrowheaders"
|-
! scope="col" |State
! scope="col" |Senator
! scope="col" |Replaced by
|-
! [[#Delaware|Delaware]]
| {{Party shading/Republican}} | {{sortname|John J.|Williams|John J. Williams (politician)}}
| {{Party shading/Republican}} | {{sortname|William|Roth}}
|-
! [[#Florida|Florida]]
| {{Party shading/Democratic}} | {{sortname|Spessard|Holland}}
| {{Party shading/Democratic}} | {{sortname|Lawton|Chiles}}
|-
! [[#Minnesota|Minnesota]]
| {{Party shading/DFL}} | {{sortname|Eugene|McCarthy}}
| {{Party shading/DFL}} | {{sortname|Hubert|Humphrey}}
|-
! [[#Ohio|Ohio]]
| {{Party shading/Democratic}} | {{sortname|Stephen M.|Young}}
| {{Party shading/Republican}} | {{sortname|Robert|Taft Jr.}}
|}

===Defeats===
One Republican and four Democrats sought re-election but lost in the primary or general election. One Republican sought election to finish the unexpired term but lost in the special election and one Republican sought election to a full term but lost in the general election.

{| class="wikitable sortable plainrowheaders"
|-
! scope="col" |State
! scope="col" |Senator
! scope="col" |Replaced by
|-
! [[#California|California]]
| {{Party shading/Republican}} | {{sortname|George|Murphy}}
| {{Party shading/Democratic}} | {{sortname|John V.|Tunney}}
|-
! [[#Connecticut|Connecticut]]
| {{Party shading/Democratic}} | {{sortname|Thomas J.|Dodd}}
| {{Party shading/Republican}} | {{sortname|Lowell|Weicker}}
|-
! [[#Illinois|Illinois]]
| {{Party shading/Republican}} | {{sortname|Ralph Tyler|Smith}}
| {{Party shading/Democratic}} | {{sortname|Adlai|Stevenson III}}
|-
! [[#Maryland|Maryland]]
| {{Party shading/Democratic}} | {{sortname|Joseph|Tydings}}
| {{Party shading/Republican}} | {{sortname|J. Glenn|Beall Jr.}}
|-
! [[#New York|New York]]
| {{Party shading/Republican}} | {{sortname|Charles|Goodell}}
| {{Party shading/Conservative (New York)}} | {{sortname|James L.|Buckley}}
|-
! [[#Tennessee|Tennessee]]
| {{Party shading/Democratic}} | {{sortname|Albert|Gore Sr.}}
| {{Party shading/Republican}} | {{sortname|Bill|Brock}}
|-
! [[#Texas|Texas]]
| {{Party shading/Democratic}} | {{sortname|Ralph|Yarborough}}
| {{Party shading/Democratic}} | {{sortname|Lloyd|Bentsen}}
|}

===Independent gain===
One Democrat ran as an Independent in the general election.

{| class="wikitable sortable plainrowheaders"
|-
! scope="col" |State
! scope="col" |Senator
! scope="col" |Replaced by
|-
! [[#Virginia|Virginia]]
| {{Party shading/Democratic}} | {{sortname|Harry F.|Byrd Jr.}}
| {{Party shading/Independent}} | {{sortname|Harry F.|Byrd Jr.}}
|}

===Post-election changes===

{| class="wikitable sortable plainrowheaders"
|-
! scope="col" |State
! scope="col" |Senator
! scope="col" |Replaced by
|-
! [[#Georgia|Georgia]]
| {{Party shading/Democratic}} | {{sortname|Richard|Russell Jr.}}
| {{Party shading/Democratic}} | {{sortname|David H.|Gambrell}}
|-
! [[#Louisiana|Louisiana]]
| {{Party shading/Democratic}} | {{sortname|Allen J.|Ellender}}
| {{Party shading/Democratic}} | {{sortname|Elaine|Edwards}}
|-
! [[#Vermont|Vermont]]
| {{Party shading/Republican}} | {{sortname|Winston L.|Prouty}}
| {{Party shading/Republican}} | {{sortname|Robert|Stafford}}
|}

== Change in composition ==
=== Before the elections ===
{| class="wikitable"  style="text-align:center;"

|-
| {{Party shading/Democratic}} | D{{Sub|1}}
| {{Party shading/Democratic}} | D{{Sub|2}}
| {{Party shading/Democratic}} | D{{Sub|3}}
| {{Party shading/Democratic}} | D{{Sub|4}}
| {{Party shading/Democratic}} | D{{Sub|5}}
| {{Party shading/Democratic}} | D{{Sub|6}}
| {{Party shading/Democratic}} | D{{Sub|7}}
| {{Party shading/Democratic}} | D{{Sub|8}}
| {{Party shading/Democratic}} | D{{Sub|9}}
| {{Party shading/Democratic}} | D{{Sub|10}}

|-
| width=10% {{Party shading/Democratic}} | D{{Sub|20}}
| width=10% {{Party shading/Democratic}} | D{{Sub|19}}
| width=10% {{Party shading/Democratic}} | D{{Sub|18}}
| width=10% {{Party shading/Democratic}} | D{{Sub|17}}
| width=10% {{Party shading/Democratic}} | D{{Sub|16}}
| width=10% {{Party shading/Democratic}} | D{{Sub|15}}
| width=10% {{Party shading/Democratic}} | D{{Sub|14}}
| width=10% {{Party shading/Democratic}} | D{{Sub|13}}
| width=10% {{Party shading/Democratic}} | D{{Sub|12}}
| width=10% {{Party shading/Democratic}} | D{{Sub|11}}

|-
| {{Party shading/Democratic}} | D{{Sub|21}}
| {{Party shading/Democratic}} | D{{Sub|22}}
| {{Party shading/Democratic}} | D{{Sub|23}}
| {{Party shading/Democratic}} | D{{Sub|24}}
| {{Party shading/Democratic}} | D{{Sub|25}}
| {{Party shading/Democratic}} | D{{Sub|26}}
| {{Party shading/Democratic}} | D{{Sub|27}}
| {{Party shading/Democratic}} | D{{Sub|28}}
| {{Party shading/Democratic}} | D{{Sub|29}}
| {{Party shading/Democratic}} | D{{Sub|30}}

|-
| {{Party shading/Democratic/active}} | D{{Sub|40}}<br />{{Small|[[#Minnesota|{{abbr|Minn.|Minnesota}}]]}}<br />{{Small|Retired}}
| {{Party shading/Democratic/active}} | D{{Sub|39}}<br />{{Small|[[#Michigan|{{abbr|Mich.|Michigan}}]]}}<br />{{Small|Ran}}
| {{Party shading/Democratic/active}} | D{{Sub|38}}<br />{{Small|[[#Massachusetts|{{abbr|Mass.|Massachusetts}}]]}}<br />{{Small|Ran}}
| {{Party shading/Democratic/active}} | D{{Sub|37}}<br />{{Small|[[#Maryland|{{abbr|Md.|Maryland}}]]}}<br />{{Small|Ran}}
| {{Party shading/Democratic/active}} | D{{Sub|36}}<br />{{Small|[[#Maine|Maine]]}}<br />{{Small|Ran}}
| {{Party shading/Democratic/active}} | D{{Sub|35}}<br />{{Small|[[#Indiana|{{abbr|Ind.|Indiana}}]]}}<br />{{Small|Ran}}
| {{Party shading/Democratic/active}} | D{{Sub|34}}<br />{{Small|[[#Florida|{{abbr|Fla.|Florida}}]]}}<br />{{Small|Retired}}
| {{Party shading/Democratic/active}} | D{{Sub|33}}<br />{{Small|[[#Connecticut|{{abbr|Conn.|Connecticut}}]]}}<br />{{Small|Ran}}
| {{Party shading/Democratic}} | D{{Sub|32}}
| {{Party shading/Democratic}} | D{{Sub|31}}

|-
| {{Party shading/Democratic/active}} | D{{Sub|41}}<br />{{Small|[[#Mississippi|{{abbr|Miss.|Mississippi}}]]}}<br />{{Small|Ran}}
| {{Party shading/Democratic/active}} | D{{Sub|42}}<br />{{Small|[[#Missouri|{{abbr|Mo.|Missouri}}]]}}<br />{{Small|Ran}}
| {{Party shading/Democratic/active}} | D{{Sub|43}}<br />{{Small|[[#Montana|{{abbr|Mont.|Montana}}]]}}<br />{{Small|Ran}}
| {{Party shading/Democratic/active}} | D{{Sub|44}}<br />{{Small|[[#Nevada|{{abbr|Nev.|Nevada}}]]}}<br />{{Small|Ran}}
| {{Party shading/Democratic/active}} | D{{Sub|45}}<br />{{Small|[[#New Jersey|{{abbr|N.J.|New Jersey}}]]}}<br />{{Small|Ran}}
| {{Party shading/Democratic/active}} | D{{Sub|46}}<br />{{Small|[[#New Mexico|{{abbr|N.M.|New Mexico}}]]}}<br />{{Small|Ran}}
| {{Party shading/Democratic/active}} | D{{Sub|47}}<br />{{Small|[[#North Dakota|{{abbr|N.D.|North Dakota}}]]}}<br />{{Small|Ran}}
| {{Party shading/Democratic/active}} | D{{Sub|48}}<br />{{Small|[[#Ohio|Ohio]]}}<br />{{Small|Ran}}
| {{Party shading/Democratic/active}} | D{{Sub|49}}<br />{{Small|[[#Rhode Island|{{abbr|R.I.|Rhode Island}}]]}}<br />{{Small|Ran}}
| {{Party shading/Democratic/active}} | D{{Sub|50}}<br />{{Small|[[#Tennessee|{{abbr|Tenn.|Tennessee}}]]}}<br />{{Small|Ran}}

|-
| colspan=9 style="text-align:right" | '''Majority →'''
| rowspan=2 {{Party shading/Democratic/active}} | D{{Sub|51}}<br />{{Small|[[#Texas|Texas]]}}<br />{{Small|Ran}}

|-
| {{Party shading/Republican/active}} | R{{Sub|41}}<br />{{Small|[[#New York|{{abbr|N.Y.|New York}}]]}}<br />{{Small|Ran}}
| {{Party shading/Republican/active}} | R{{Sub|42}}<br />{{Small|[[#Pennsylvania|{{abbr|Pa.|Pennsylvania}}]]}}<br />{{Small|Ran}}
| {{Party shading/Republican/active}} | R{{Sub|43}}<br />{{Small|[[#Vermont|{{abbr|Vt.|Vermont}}]]}}<br />{{Small|Ran}}
| {{Party shading/Democratic/active}} | D{{Sub|51}}<br />{{Small|[[#Virginia|{{abbr|Va.|Virginia}}]]}}<br />{{Small|Ran}}
| {{Party shading/Democratic/active}} | D{{Sub|56}}<br />{{Small|[[#Wyoming|{{abbr|Wyo.|Wyoming}}]]}}<br />{{Small|Ran}}
| {{Party shading/Democratic/active}} | D{{Sub|55}}<br />{{Small|[[#Wisconsin|{{abbr|Wis.|Wisconsin}}]]}}<br />{{Small|Retired}}
| {{Party shading/Democratic/active}} | D{{Sub|54}}<br />{{Small|[[#West Virginia|{{abbr|W.Va.|West Virginia}}]]}}<br />{{Small|Ran}}
| {{Party shading/Democratic/active}} | D{{Sub|53}}<br />{{Small|[[#Washington|{{abbr|Wash.|Washington}}]]}}<br />{{Small|Ran}}
| {{Party shading/Democratic/active}} | D{{Sub|52}}<br />{{Small|[[#Utah|Utah]]}}<br />{{Small|Ran}}

|-
| {{Party shading/Republican/active}} | R{{Sub|40}}<br />{{Small|[[#Nebraska|{{abbr|Neb.|Nebraska}}]]}}<br />{{Small|Ran}}
| {{Party shading/Republican/active}} | R{{Sub|39}}<br />{{Small|[[#Illinois (special)|{{abbr|Ill. (sp)|Illinois (special)}}]]}}<br />{{Small|Ran}}
| {{Party shading/Republican/active}} | R{{Sub|38}}<br />{{Small|[[#Hawaii|Hawaii]]}}<br />{{Small|Ran}}
| {{Party shading/Republican/active}} | R{{Sub|37}}<br />{{Small|[[#Delaware|{{abbr|Del.|Delaware}}]]}}<br />{{Small|Retired}}
| {{Party shading/Republican/active}} | R{{Sub|36}}<br />{{Small|[[#California|{{abbr|Calif.|California}}]]}}<br />{{Small|Ran}}
| {{Party shading/Republican/active}} | R{{Sub|35}}<br />{{Small|[[#Arizona|{{abbr|Ariz.|Arizona}}]]}}<br />{{Small|Ran}}
| {{Party shading/Republican/active}} | R{{Sub|34}}<br />{{Small|[[#Alaska (special)|Alaska (sp)]]}}<br />{{Small|Ran}}
| {{Party shading/Republican}} | R{{Sub|33}}
| {{Party shading/Republican}} | R{{Sub|32}}
| {{Party shading/Republican}} | R{{Sub|31}}

|-
| {{Party shading/Republican}} | R{{Sub|21}}
| {{Party shading/Republican}} | R{{Sub|22}}
| {{Party shading/Republican}} | R{{Sub|23}}
| {{Party shading/Republican}} | R{{Sub|24}}
| {{Party shading/Republican}} | R{{Sub|25}}
| {{Party shading/Republican}} | R{{Sub|26}}
| {{Party shading/Republican}} | R{{Sub|27}}
| {{Party shading/Republican}} | R{{Sub|28}}
| {{Party shading/Republican}} | R{{Sub|29}}
| {{Party shading/Republican}} | R{{Sub|30}}

|-
| {{Party shading/Republican}} | R{{Sub|20}}
| {{Party shading/Republican}} | R{{Sub|19}}
| {{Party shading/Republican}} | R{{Sub|18}}
| {{Party shading/Republican}} | R{{Sub|17}}
| {{Party shading/Republican}} | R{{Sub|16}}
| {{Party shading/Republican}} | R{{Sub|15}}
| {{Party shading/Republican}} | R{{Sub|14}}
| {{Party shading/Republican}} | R{{Sub|13}}
| {{Party shading/Republican}} | R{{Sub|12}}
| {{Party shading/Republican}} | R{{Sub|11}}

|-
| {{Party shading/Republican}} | R{{Sub|1}}
| {{Party shading/Republican}} | R{{Sub|2}}
| {{Party shading/Republican}} | R{{Sub|3}}
| {{Party shading/Republican}} | R{{Sub|4}}
| {{Party shading/Republican}} | R{{Sub|5}}
| {{Party shading/Republican}} | R{{Sub|6}}
| {{Party shading/Republican}} | R{{Sub|7}}
| {{Party shading/Republican}} | R{{Sub|8}}
| {{Party shading/Republican}} | R{{Sub|9}}
| {{Party shading/Republican}} | R{{Sub|10}}

|}

=== After the elections ===
{| class="wikitable"  style="text-align:center;"

|-
| {{Party shading/Democratic}} | D{{Sub|1}}
| {{Party shading/Democratic}} | D{{Sub|2}}
| {{Party shading/Democratic}} | D{{Sub|3}}
| {{Party shading/Democratic}} | D{{Sub|4}}
| {{Party shading/Democratic}} | D{{Sub|5}}
| {{Party shading/Democratic}} | D{{Sub|6}}
| {{Party shading/Democratic}} | D{{Sub|7}}
| {{Party shading/Democratic}} | D{{Sub|8}}
| {{Party shading/Democratic}} | D{{Sub|9}}
| {{Party shading/Democratic}} | D{{Sub|10}}

|-
| width=10% {{Party shading/Democratic}} | D{{Sub|20}}
| width=10% {{Party shading/Democratic}} | D{{Sub|19}}
| width=10% {{Party shading/Democratic}} | D{{Sub|18}}
| width=10% {{Party shading/Democratic}} | D{{Sub|17}}
| width=10% {{Party shading/Democratic}} | D{{Sub|16}}
| width=10% {{Party shading/Democratic}} | D{{Sub|15}}
| width=10% {{Party shading/Democratic}} | D{{Sub|14}}
| width=10% {{Party shading/Democratic}} | D{{Sub|13}}
| width=10% {{Party shading/Democratic}} | D{{Sub|12}}
| width=10% {{Party shading/Democratic}} | D{{Sub|11}}

|-
| {{Party shading/Democratic}} | D{{Sub|21}}
| {{Party shading/Democratic}} | D{{Sub|22}}
| {{Party shading/Democratic}} | D{{Sub|23}}
| {{Party shading/Democratic}} | D{{Sub|24}}
| {{Party shading/Democratic}} | D{{Sub|25}}
| {{Party shading/Democratic}} | D{{Sub|26}}
| {{Party shading/Democratic}} | D{{Sub|27}}
| {{Party shading/Democratic}} | D{{Sub|28}}
| {{Party shading/Democratic}} | D{{Sub|29}}
| {{Party shading/Democratic}} | D{{Sub|30}}

|-
| {{Party shading/Democratic/active}} | D{{Sub|40}}<br />{{Small|[[#Missouri|{{abbr|Mo.|Missouri}}]]}}<br />{{Small|Re-elected}}
| {{Party shading/Democratic/active}} | D{{Sub|39}}<br />{{Small|[[#Mississippi|{{abbr|Miss.|Mississippi}}]]}}<br />{{Small|Re-elected}}
| {{Party shading/Democratic/active}} | D{{Sub|38}}<br />{{Small|[[#Minnesota|{{abbr|Minn.|Minnesota}}]]}}<br />{{Small|Hold}}
| {{Party shading/Democratic/active}} | D{{Sub|37}}<br />{{Small|[[#Michigan|{{abbr|Mich.|Michigan}}]]}}<br />{{Small|Re-elected}}
| {{Party shading/Democratic/active}} | D{{Sub|36}}<br />{{Small|[[#Massachusetts|{{abbr|Mass.|Massachusetts}}]]}}<br />{{Small|Re-elected}}
| {{Party shading/Democratic/active}} | D{{Sub|35}}<br />{{Small|[[#Maine|Maine]]}}<br />{{Small|Re-elected}}
| {{Party shading/Democratic/active}} | D{{Sub|34}}<br />{{Small|[[#Indiana|{{abbr|Ind.|Indiana}}]]}}<br />{{Small|Re-elected}}
| {{Party shading/Democratic/active}} | D{{Sub|33}}<br />{{Small|[[#Florida|{{abbr|Fla.|Florida}}]]}}<br />{{Small|Hold}}
| {{Party shading/Democratic}} | D{{Sub|32}}
| {{Party shading/Democratic}} | D{{Sub|31}}
|-
| {{Party shading/Democratic/active}} | D{{Sub|41}}<br />{{Small|[[#Montana|{{abbr|Mont.|Montana}}]]}}<br />{{Small|Re-elected}}
| {{Party shading/Democratic/active}} | D{{Sub|42}}<br />{{Small|[[#Nevada|{{abbr|Nev.|Nevada}}]]}}<br />{{Small|Re-elected}}
| {{Party shading/Democratic/active}} | D{{Sub|43}}<br />{{Small|[[#New Jersey|{{abbr|N.J.|New Jersey}}]]}}<br />{{Small|Re-elected}}
| {{Party shading/Democratic/active}} | D{{Sub|44}}<br />{{Small|[[#New Mexico|{{abbr|N.M.|New Mexico}}]]}}<br />{{Small|Re-elected}}
| {{Party shading/Democratic/active}} | D{{Sub|45}}<br />{{Small|[[#North Dakota|{{abbr|N.D.|North Dakota}}]]}}<br />{{Small|Re-elected}}
| {{Party shading/Democratic/active}} | D{{Sub|46}}<br />{{Small|[[#Rhode Island|{{abbr|R.I.|Rhode Island}}]]}}<br />{{Small|Re-elected}}
| {{Party shading/Democratic/active}} | D{{Sub|47}}<br />{{Small|[[#Texas|Texas]]}}<br />{{Small|Hold}}
| {{Party shading/Democratic/active}} | D{{Sub|48}}<br />{{Small|[[#Utah|Utah]]}}<br />{{Small|Re-elected}}
| {{Party shading/Democratic/active}} | D{{Sub|49}}<br />{{Small|[[#Washington|{{abbr|Wash.|Washington}}]]}}<br />{{Small|Re-elected}}
| {{Party shading/Democratic/active}} | D{{Sub|50}}<br />{{Small|[[#West Virginia|{{abbr|W.Va.|West Virginia}}]]}}<br />{{Small|Re-elected}}

|-
| colspan=9 style="text-align:right" | '''Majority →'''
| rowspan=2 {{Party shading/Democratic/active}} | D{{Sub|51}}<br />{{Small|[[#Wisconsin|{{abbr|Wis.|Wisconsin}}]]}}<br />{{Small|Re-elected}}

|-
| {{Party shading/Republican/active}} | R{{Sub|41}}<br />{{Small|[[#Connecticut|{{abbr|Conn.|Connecticut}}]]}}<br />{{Small|Gain}}
| {{Party shading/Republican/active}} | R{{Sub|42}}<br />{{Small|[[#Maryland|{{abbr|Md.|Maryland}}]]}}<br />{{Small|Gain}}
| {{Party shading/Republican/active}} | R{{Sub|43}}<br />{{Small|[[#Ohio|Ohio]]}}<br />{{Small|Gain}}
| {{Party shading/Republican/active}} | R{{Sub|44}}<br />{{Small|[[#Tennessee|{{abbr|Tenn.|Tennessee}}]]}}<br />{{Small|Gain}}

| {{Party shading/Conservative (New York)/active}} | C{{Sub|1}}<br />{{Small|[[#New York|{{abbr|N.Y.|New York}}]]}}<br />{{Small|Gain{{efn|name=Appointee_defeated|Appointee defeated}}}}
<!--DEM caucus above 50-->
| {{Party shading/Independent/active}} | I{{Sub|1}}<br />{{Small|[[#Virginia|{{abbr|Va.|Virginia}}]]}}<br />{{Small|Re-elected/Gain}}
| {{Party shading/Democratic/active}} | D{{Sub|54}}<br />{{Small|[[#Illinois (special)|{{abbr|Ill. (sp)|Illinois (special)}}]]}}<br />{{Small|Gain{{efn|name=Appointee_defeated}}}}
| {{Party shading/Democratic/active}} | D{{Sub|53}}<br />{{Small|[[#California|{{abbr|Calif.|California}}]]}}<br />{{Small|Gain}}
| {{Party shading/Democratic/active}} | D{{Sub|52}}<br />{{Small|[[#Wyoming|{{abbr|Wyo.|Wyoming}}]]}}<br />{{Small|Re-elected}}
|-
| {{Party shading/Republican/active}} | R{{Sub|40}}<br />{{Small|[[#Vermont|{{abbr|Vt.|Vermont}}]]}}<br />{{Small|Re-elected}}
| {{Party shading/Republican/active}} | R{{Sub|39}}<br />{{Small|[[#Pennsylvania|{{abbr|Pa.|Pennsylvania}}]]}}<br />{{Small|Re-elected}}
| {{Party shading/Republican/active}} | R{{Sub|38}}<br />{{Small|[[#Nebraska|{{abbr|Neb.|Nebraska}}]]}}<br />{{Small|Re-elected}}
| {{Party shading/Republican/active}} | R{{Sub|37}}<br />{{Small|[[#Hawaii|Hawaii]]}}<br />{{Small|Re-elected}}
| {{Party shading/Republican/active}} | R{{Sub|36}}<br />{{Small|[[#Delaware|{{abbr|Del.|Delaware}}]]}}<br />{{Small|Hold}}
| {{Party shading/Republican/active}} | R{{Sub|35}}<br />{{Small|[[#Arizona|{{abbr|Ariz.|Arizona}}]]}}<br />{{Small|Re-elected}}
| {{Party shading/Republican/active}} | R{{Sub|34}}<br />{{Small|[[#Alaska (special)|Alaska (sp)]]}}<br />{{Small|Elected{{efn|name="Appointee elected"|Appointee elected}}}}
| {{Party shading/Republican}} | R{{Sub|33}}
| {{Party shading/Republican}} | R{{Sub|32}}
| {{Party shading/Republican}} | R{{Sub|31}}

|-
| {{Party shading/Republican}} | R{{Sub|21}}
| {{Party shading/Republican}} | R{{Sub|22}}
| {{Party shading/Republican}} | R{{Sub|23}}
| {{Party shading/Republican}} | R{{Sub|24}}
| {{Party shading/Republican}} | R{{Sub|25}}
| {{Party shading/Republican}} | R{{Sub|26}}
| {{Party shading/Republican}} | R{{Sub|27}}
| {{Party shading/Republican}} | R{{Sub|28}}
| {{Party shading/Republican}} | R{{Sub|29}}
| {{Party shading/Republican}} | R{{Sub|30}}

|-
| {{Party shading/Republican}} | R{{Sub|20}}
| {{Party shading/Republican}} | R{{Sub|19}}
| {{Party shading/Republican}} | R{{Sub|18}}
| {{Party shading/Republican}} | R{{Sub|17}}
| {{Party shading/Republican}} | R{{Sub|16}}
| {{Party shading/Republican}} | R{{Sub|15}}
| {{Party shading/Republican}} | R{{Sub|14}}
| {{Party shading/Republican}} | R{{Sub|13}}
| {{Party shading/Republican}} | R{{Sub|12}}
| {{Party shading/Republican}} | R{{Sub|11}}

|-
| {{Party shading/Republican}} | R{{Sub|1}}
| {{Party shading/Republican}} | R{{Sub|2}}
| {{Party shading/Republican}} | R{{Sub|3}}
| {{Party shading/Republican}} | R{{Sub|4}}
| {{Party shading/Republican}} | R{{Sub|5}}
| {{Party shading/Republican}} | R{{Sub|6}}
| {{Party shading/Republican}} | R{{Sub|7}}
| {{Party shading/Republican}} | R{{Sub|8}}
| {{Party shading/Republican}} | R{{Sub|9}}
| {{Party shading/Republican}} | R{{Sub|10}}

|}

{|
|- valign=top
! Key:
|
{| class=wikitable
|-
| align=center {{Party shading/Conservative (New York)}} | C{{Sub|#}}
| [[Conservative Party of New York State|Conservative (New York)]]
|-
| align=center {{Party shading/Democratic}} | D{{Sub|#}}
| [[Democratic Party (United States)|Democratic]]
|-
| align=center {{Party shading/Republican}} | R{{Sub|#}}
| [[Republican Party (United States)|Republican]]
|-
| align=center {{Party shading/Independent}} | I{{Sub|#}}
| Independent
|}
|}

== Race summary ==

=== Special elections during the 91st Congress ===
In these special elections, the winner was seated during 1970 or before January 3, 1971; ordered by election date, then state.

{| class=wikitable

|- valign=bottom
! rowspan=2 | State
! colspan=3 | Incumbent
! rowspan=2 | Results
! rowspan=2 | Candidates

|-
! Senator
! Party
! Electoral history

|-
! [[#Alaska (special)|Alaska]]<br />(Class 2)
| [[Ted Stevens]]
| {{Party shading/Republican}} | Republican
| 1968 {{Small|(Appointed)}}
| Interim appointee [[1970 United States Senate special election in Alaska|elected]] '''November 3, 1970'''.
| nowrap | {{Plainlist |
* {{Party stripe|Republican Party (US)}}{{Aye}} '''[[Ted Stevens]]''' (Republican) 59.6%
* {{Party stripe|Democratic Party (US)}}[[Wendell P. Kay]] (Democratic) 40.4%
}}

|-
! [[#Illinois (special)|Illinois]]<br />(Class 3)
| [[Ralph Tyler Smith]]
| {{Party shading/Republican}} | Republican
| 1969 {{Small|(Appointed)}}
| {{party shading/Democratic}} | Interim appointee lost election.<br />New senator [[1970 United States Senate special election in Illinois|elected]] '''November 3, 1970'''.<br />'''Democratic gain'''.
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''[[Adlai Stevenson III]]''' (Democratic) 57.4%
* {{Party stripe|Republican Party (US)}}[[Ralph Tyler Smith]] (Republican) 42.2%
}}

|}

=== Elections leading to the next Congress ===
In these general elections, the winners were elected for the term beginning January 3, 1971; ordered by state.

All of the elections involved the Class 1 seats.

{| class="wikitable sortable"

|- valign=bottom
! rowspan=2 | State
! colspan=3 | Incumbent
! rowspan=2 | Results
! rowspan=2 | Candidates

|-
! Senator
! Party
! Electoral history

|-
! [[#Arizona|Arizona]]
| {{Sortname|Paul|Fannin}} 
| {{Party shading/Republican}} | Republican
| [[1964 United States Senate election in Arizona|1964]]
| Incumbent [[1970 United States Senate election in Arizona|re-elected]].
| nowrap | {{Plainlist |
* {{Party stripe|Republican Party (US)}}{{Aye}} '''{{Sortname|Paul|Fannin}}''' (Republican) 56.0%
* {{Party stripe|Democratic Party (US)}}[[Sam Grossman]] (Democratic) 44.0%
}}

|-
! [[#California|California]]
| {{Sortname|George|Murphy}} 
| {{Party shading/Republican}} | Republican
| [[1964 United States Senate election in California|1964]]<br />1964 {{Small|(Appointed)}}
| {{party shading/Democratic}} | Incumbent lost re-election.<br />New senator [[1970 United States Senate election in California|elected]].<br />'''Democratic gain'''<br />Incumbent resigned January 1, 1971 to give successor preferential seniority.<br />Winner appointed January 2, 1971.
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''{{Sortname|John V.|Tunney}}''' (Democratic) 53.9%
* {{Party stripe|Republican Party (US)}}[[George Murphy]] (Republican) 44.3%
* {{Party stripe|Peace and Freedom Party (US)}}[[Robert Scheer]] (Peace and Freedom) 0.9%
* {{Party stripe|American Independent Party}}Charles C. Ripley (American Independent) 0.9%
}}

|-
! [[#Connecticut|Connecticut]]
| {{Sortname|Thomas J.|Dodd}} 
| {{Party shading/Democratic}} | Democratic
| [[1958 United States Senate election in Connecticut|1958]]<br />[[1964 United States Senate election in Connecticut|1964]]
| {{party shading/Republican}} | Incumbent lost renomination, then ran as an [[Independent politician (United States)|Independent]] candidate but lost re-election.<br />New senator [[1970 United States Senate election in Connecticut|elected]].<br />'''Republican gain'''.
| nowrap | {{Plainlist |
* {{Party stripe|Republican Party (US)}}{{Aye}} '''{{Sortname|Lowell|Weicker}}''' (Republican) 41.7%
* {{Party stripe|Democratic Party (US)}}[[Joseph Duffey]] (Democratic) 33.8%
* {{Party stripe|Independent}}[[Thomas J. Dodd]] (Independent) 24.5%
}}

|-
! [[#Delaware|Delaware]]
| {{Sortname|John J.|Williams|John J. Williams (politician)}} 
| {{Party shading/Republican}} | Republican
| [[1946 United States Senate election in Delaware|1946]]<br />[[1952 United States Senate election in Delaware|1952]]<br />[[1958 United States Senate election in Delaware|1958]]<br />[[1964 United States Senate election in Delaware|1964]]
| {{party shading/Republican/Hold}} | Incumbent retired.<br />New senator [[1970 United States Senate election in Delaware|elected]].<br />Republican hold.<br />Incumbent resigned December 31, 1970 to give successor preferential seniority.<br />Winner appointed January 1, 1971.
| nowrap | {{Plainlist |
* {{Party stripe|Republican Party (US)}}{{Aye}} '''{{Sortname|William|Roth}}''' (Republican) 58.8%
* {{Party stripe|Democratic Party (US)}}Jacob Zimmerman (Democratic) 40.1%
}}

|-
! [[#Florida|Florida]]
| {{Sortname|Spessard|Holland}} 
| {{Party shading/Democratic}} | Democratic
| 1946 {{Small|(Appointed)}}<br />[[1946 United States Senate election in Florida|1946]]<br />[[1952 United States Senate election in Florida|1952]]<br />[[1958 United States Senate election in Florida|1958]]<br />[[1964 United States Senate election in Florida|1964]]
| {{party shading/Democratic/Hold}} | Incumbent retired.<br />New senator [[1970 United States Senate election in Florida|elected]].<br />Democratic hold.
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''{{Sortname|Lawton|Chiles}}''' (Democratic) 53.9%
* {{Party stripe|Republican Party (US)}}[[William C. Cramer]] (Republican) 46.1%
}}

|-
! [[#Hawaii|Hawaii]]
| {{Sortname|Hiram|Fong}} 
| {{Party shading/Republican}} | Republican
| [[1959 United States Senate elections in Hawaii|1959]]<br />[[1964 United States Senate election in Hawaii|1964]]
| Incumbent [[1970 United States Senate election in Hawaii|re-elected]].
| nowrap | {{Plainlist |
* {{Party stripe|Republican Party (US)}}{{Aye}} '''{{Sortname|Hiram|Fong}}''' (Republican) 51.6%
* {{Party stripe|Democratic Party (US)}}[[Cecil Heftel]] (Democratic) 48.4%
}}

|-
! [[#Indiana|Indiana]]
| {{Sortname|Vance|Hartke}} 
| {{Party shading/Democratic}} | Democratic
| [[1958 United States Senate election in Indiana|1958]]<br />[[1964 United States Senate election in Indiana|1964]]
| Incumbent [[1970 United States Senate election in Indiana|re-elected]].
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''{{Sortname|Vance|Hartke}}''' (Democratic) 50.1%
* {{Party stripe|Republican Party (US)}}[[Richard L. Roudebush]] (Republican) 49.9%
}}

|-
! [[#Maine|Maine]]
| {{Sortname|Edmund|Muskie}} 
| {{Party shading/Democratic}} | Democratic
| [[1958 United States Senate election in Maine|1958]]<br />[[1964 United States Senate election in Maine|1964]]
| Incumbent [[1970 United States Senate election in Maine|re-elected]].
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''{{Sortname|Edmund|Muskie}}''' (Democratic) 61.9%
* {{Party stripe|Republican Party (US)}}[[Neil S. Bishop]] (Republican) 38.3%
}}

|-
! [[#Maryland|Maryland]]
| {{Sortname|Joseph|Tydings}} 
| {{Party shading/Democratic}} | Democratic
| [[1964 United States Senate election in Maryland|1964]]
| {{party shading/Republican}} | Incumbent lost re-election.<br />New senator [[1970 United States Senate election in Maryland|elected]].<br />'''Republican gain'''.
| nowrap | {{Plainlist |
* {{Party stripe|Republican Party (US)}}{{Aye}} '''{{Sortname|J. Glenn|Beall Jr.}}''' (Republican) 50.7%
* {{Party stripe|Democratic Party (US)}}[[Joseph Tydings]] (Democratic) 48.1%
}}

|-
! [[#Massachusetts|Massachusetts]]
| {{Sortname|Ted|Kennedy}} 
| {{Party shading/Democratic}} | Democratic
| [[1962 United States Senate special election in Massachusetts|1962 {{Small|(special)}}]]<br />[[1964 United States Senate election in Massachusetts|1964]]
| Incumbent [[1970 United States Senate election in Massachusetts|re-elected]].
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''{{Sortname|Ted|Kennedy}}''' (Democratic) 62.1%
* {{Party stripe|Republican Party (US)}}[[Josiah Spaulding]] (Republican) 37.0%
}}

|-
! [[#Michigan|Michigan]]
| {{Sortname|Philip|Hart}} 
| {{Party shading/Democratic}} | Democratic
| [[1958 United States Senate election in Michigan|1958]]<br />[[1964 United States Senate election in Michigan|1964]]
| Incumbent [[1970 United States Senate election in Michigan|re-elected]].
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''{{Sortname|Philip|Hart}}''' (Democratic) 66.8%
* {{Party stripe|Republican Party (US)}}[[Lenore Romney]] (Republican) 32.9%
}}

|-
! [[#Minnesota|Minnesota]]
| {{Sortname|Eugene|McCarthy}} 
| {{Party shading/DFL}} | DFL<ref>The [[Minnesota Democratic–Farmer–Labor Party]] is affiliated nationally with the [[Democratic Party (United States)]].</ref>
| [[1958 United States Senate election in Minnesota|1958]]<br />[[1964 United States Senate election in Minnesota|1964]]
| {{party shading/Democratic/Hold}} | Incumbent retired.<br />New senator [[1970 United States Senate election in Minnesota|elected]].<br />DFL hold.
| nowrap | {{Plainlist |
* {{Party stripe|Minnesota Democratic–Farmer–Labor Party}}{{Aye}} '''{{Sortname|Hubert|Humphrey}}''' (DFL) 57.8%
* {{Party stripe|Republican Party (US)}}[[Clark MacGregor]] (Republican) 41.6%
}}

|-
! [[#Mississippi|Mississippi]]
| {{Sortname|John C.|Stennis}} 
| {{Party shading/Democratic}} | Democratic
| [[1947 United States Senate special election in Mississippi|1947 {{Small|(special)}}]]<br />[[1952 United States Senate election in Mississippi|1952]]<br />[[1958 United States Senate election in Mississippi|1958]]<br />[[1964 United States Senate election in Mississippi|1964]]
| Incumbent [[1970 United States Senate election in Mississippi|re-elected]].
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''{{Sortname|John C.|Stennis}}''' (Democratic) 88.4%
* {{Party stripe|Independent}}William R. Thompson (Independent) 11.6%
}}

|-
! [[#Missouri|Missouri]]
| {{Sortname|Stuart|Symington}} 
| {{Party shading/Democratic}} | Democratic
| [[1952 United States Senate election in Missouri|1952]]<br />[[1958 United States Senate election in Missouri|1958]]<br />[[1964 United States Senate election in Missouri|1964]]
| Incumbent [[1970 United States Senate election in Missouri|re-elected]].
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''{{Sortname|Stuart|Symington}}''' (Democratic) 51.1%
* {{Party stripe|Republican Party (US)}}[[John Danforth]] (Republican) 48.1%}}
{{collapsible list|title=Others|
| {{Party stripe|American Independent Party}}Gene Chapman (American Independent) 0.8%
| {{Party stripe|Independent}}E. J. DiGirolamo (Independent) 0.04%
}}

|-
! [[#Montana|Montana]]
| {{Sortname|Mike|Mansfield}} 
| {{Party shading/Democratic}} | Democratic
| [[1952 United States Senate election in Montana|1952]]<br />[[1958 United States Senate election in Montana|1958]]<br />[[1964 United States Senate election in Montana|1964]]
| Incumbent [[1970 United States Senate election in Montana|re-elected]].
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''{{Sortname|Mike|Mansfield}}''' (Democratic) 60.5%
* {{Party stripe|Republican Party (US)}}[[Harold E. Wallace]] (Republican) 39.5%
}}

|-
! [[#Nebraska|Nebraska]]
| {{Sortname|Roman|Hruska}} 
| {{Party shading/Republican}} | Republican
| [[1954 United States Senate special elections in Nebraska|1954 {{Small|(special)}}]]<br />[[1958 United States Senate election in Nebraska|1958]]<br />[[1964 United States Senate election in Nebraska|1964]]
| Incumbent [[1970 United States Senate election in Nebraska|re-elected]].
| nowrap | {{Plainlist |
* {{Party stripe|Republican Party (US)}}{{Aye}} '''{{Sortname|Roman|Hruska}}''' (Republican) 52.5%
* {{Party stripe|Democratic Party (US)}}[[Frank B. Morrison]] (Democratic) 47.5%
}}

|-
! [[#Nevada|Nevada]]
| {{Sortname|Howard|Cannon}} 
| {{Party shading/Democratic}} | Democratic
| [[1958 United States Senate election in Nevada|1958]]<br />[[1964 United States Senate election in Nevada|1964]]
| Incumbent [[1970 United States Senate election in Nevada|re-elected]].
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''{{Sortname|Howard|Cannon}}''' (Democratic) 57.7%
* {{Party stripe|Republican Party (US)}}[[William Raggio]] (Republican) 41.2%
}}

|-
! [[#New Jersey|New Jersey]]
| {{Sortname|Harrison A.|Williams}} 
| {{Party shading/Democratic}} | Democratic
| [[1958 United States Senate election in New Jersey|1958]]<br />[[1964 United States Senate election in New Jersey|1964]]
| Incumbent [[1970 United States Senate election in New Jersey|re-elected]].
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''{{Sortname|Harrison A.|Williams}}''' (Democratic) 54.0%
* {{Party stripe|Republican Party (US)}}[[Nelson G. Gross]] (Republican) 42.2%
}}

|-
! [[#New Mexico|New Mexico]]
| {{Sortname|Joseph|Montoya}} 
| {{Party shading/Democratic}} | Democratic
| [[1964 United States Senate special election in New Mexico|1964 {{Small|(special)}}]]<br />[[1964 United States Senate election in New Mexico|1964]]
| Incumbent [[1970 United States Senate election in New Mexico|re-elected]].
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''{{Sortname|Joseph|Montoya}}''' (Democratic) 52.3%
* {{Party stripe|Republican Party (US)}}Anderson Carter (Republican) 46.6%
}}

|-
! [[#New York|New York]]
| {{Sortname|Charles|Goodell}} 
| {{Party shading/Republican}} | Republican
| 1968 {{Small|(Appointed)}}
| {{Party shading/Conservative (New York)}} | Interim appointee lost election.<br />New senator [[1970 United States Senate election in New York|elected]].<br />'''Conservative gain'''.
| nowrap | {{Plainlist |
* {{Party stripe|Conservative Party (US)}}{{Aye}} '''{{Sortname|James L.|Buckley}}''' (Conservative) 38.8%
* {{Party stripe|Democratic Party (US)}}[[Richard Ottinger]] (Democratic) 36.8%
* {{Party stripe|Republican Party (US)}}[[Charles Goodell]] (Republican) 24.3%
}}

|-
! [[#North Dakota|North Dakota]]
| {{Sortname|Quentin|Burdick}} 
| {{Party shading/North Dakota Democratic-NPL}} | Democratic-NPL
| [[1960 United States Senate special election in North Dakota|1960 {{Small|(special)}}]]<br />[[1964 United States Senate election in North Dakota|1964]]
| Incumbent [[1970 United States Senate election in North Dakota|re-elected]].
| nowrap | {{Plainlist |
* {{Party stripe|North Dakota Democratic-NPL Party}}{{Aye}} '''{{Sortname|Quentin|Burdick}}''' (Democratic-NPL) 61.3%
* {{Party stripe|Republican Party (US)}}[[Thomas S. Kleppe]] (Republican) 37.8%
}}

|-
! [[#Ohio|Ohio]]
| {{Sortname|Stephen M.|Young}} 
| {{Party shading/Democratic}} | Democratic
| [[1958 United States Senate election in Ohio|1958]]<br />[[1964 United States Senate election in Ohio|1964]]
| {{party shading/Republican}} | Incumbent retired.<br />New senator [[1970 United States Senate election in Ohio|elected]].<br />'''Republican gain'''.
| nowrap | {{Plainlist |
* {{Party stripe|Republican Party (US)}}{{Aye}} '''{{Sortname|Robert|Taft Jr.}}''' (Republican) 49.7%
* {{Party stripe|Democratic Party (US)}}[[Howard Metzenbaum]] (Democratic) 47.5%
}}

|-
! [[#Pennsylvania|Pennsylvania]]
| {{Sortname|Hugh|Scott}} 
| {{Party shading/Republican}} | Republican
| [[1958 United States Senate election in Pennsylvania|1958]]<br />[[1964 United States Senate election in Pennsylvania|1964]]
| Incumbent [[1970 United States Senate election in Pennsylvania|re-elected]].
| nowrap | {{Plainlist |
* {{Party stripe|Republican Party (US)}}{{Aye}} '''{{Sortname|Hugh|Scott}}''' (Republican) 51.4%
* {{Party stripe|Democratic Party (US)}}[[William Sesler]] (Democratic) 45.4%
}}

|-
! [[#Rhode Island|Rhode Island]]
| {{Sortname|John|Pastore}} 
| {{Party shading/Democratic}} | Democratic
| [[1950 United States Senate special election in Rhode Island|1950 {{Small|(special)}}]]<br />[[1952 United States Senate election in Rhode Island|1952]]<br />[[1958 United States Senate election in Rhode Island|1958]]<br />[[1964 United States Senate election in Rhode Island|1964]]
| Incumbent [[1970 United States Senate election in Rhode Island|re-elected]].
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''{{Sortname|John|Pastore}}''' (Democratic) 67.5%
* {{Party stripe|Republican Party (US)}}[[John McLaughlin (host)|John McLaughlin]] (Republican) 31.5%
}}

|-
! [[#Tennessee|Tennessee]]
| {{Sortname|Albert|Gore Sr.}}
| {{Party shading/Democratic}} | Democratic
| [[1952 United States Senate election in Tennessee|1952]]<br />[[1958 United States Senate election in Tennessee|1958]]<br />[[1964 United States Senate election in Tennessee|1964]]
| {{party shading/Republican}} | Incumbent lost re-election.<br />New senator [[1970 United States Senate election in Tennessee|elected]].<br />'''Republican gain'''.
| nowrap | {{Plainlist |
* {{Party stripe|Republican Party (US)}}{{Aye}} '''{{Sortname|Bill|Brock}}''' (Republican) 51.3%
* {{Party stripe|Democratic Party (US)}}[[Albert Gore Sr.]] (Democratic) 47.4%
}}

|-
! [[#Texas|Texas]]
| {{Sortname|Ralph|Yarborough}} 
| {{Party shading/Democratic}} | Democratic
| [[1957 United States Senate special election in Texas|1957 {{Small|(special)}}]]<br />[[1958 United States Senate election in Texas|1958]]<br />[[1964 United States Senate election in Texas|1964]]
| {{party shading/Democratic/Hold}} | Incumbent lost renomination.<br />New senator [[1970 United States Senate election in Texas|elected]].<br />Democratic hold.
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''{{Sortname|Lloyd|Bentsen}}''' (Democratic) 53.5%
* {{Party stripe|Republican Party (US)}}[[George H. W. Bush]] (Republican) 46.4%
}}

|-
! [[#Utah|Utah]]
| {{Sortname|Frank|Moss}}
| {{Party shading/Democratic}} | Democratic
| [[1958 United States Senate election in Utah|1958]]<br />[[1964 United States Senate election in Utah|1964]]
| Incumbent [[1970 United States Senate election in Utah|re-elected]].
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''{{Sortname|Frank|Moss}}''' (Democratic) 56.2%
* {{Party stripe|Republican Party (US)}}[[Laurence J. Burton]] (Republican) 42.5%
* {{Party stripe|American Independent Party}}Clyde B. Freeman (American Independent) 1.4%
}}

|-
! [[#Vermont|Vermont]]
| {{Sortname|Winston L.|Prouty}} 
| {{Party shading/Republican}} | Republican
| [[1958 United States Senate election in Vermont|1958]]<br />[[1964 United States Senate election in Vermont|1964]]
| Incumbent [[1970 United States Senate election in Vermont|re-elected]].
| nowrap | {{Plainlist |
* {{Party stripe|Republican Party (US)}}{{Aye}} '''{{Sortname|Winston L.|Prouty}}''' (Republican) 58.9%
* {{Party stripe|Democratic Party (US)}}[[Philip H. Hoff]] (Democratic) 40.2%
}}

|-
! [[#Virginia|Virginia]]
| {{Sortname|Harry F.|Byrd Jr.}}
| {{Party shading/Democratic}} | Democratic
| 1965 {{Small|(Appointed)}}<br />[[1966 United States Senate special election in Virginia|1966 {{Small|(special)}}]]
| {{party shading/Independent}} | Incumbent ran as an [[Independent politician (United States)|Independent]] and was [[1970 United States Senate election in Virginia|re-elected]]. <br />'''Independent gain'''.
| nowrap | {{Plainlist |
* {{Party stripe|Independent}}{{Aye}} '''{{Sortname|Harry F.|Byrd Jr.}}''' (Independent) 53.5%
* {{Party stripe|Democratic Party (US)}}[[George Rawlings]] (Democratic) 31.2%
* {{Party stripe|Republican Party (US)}}Ray Garland (Republican) 15.3%
}}

|-
! [[#Washington|Washington]]
| {{Sortname|Henry M.|Jackson}} 
| {{Party shading/Democratic}} | Democratic
| [[1952 United States Senate election in Washington|1952]]<br />[[1958 United States Senate election in Washington|1958]]<br />[[1964 United States Senate election in Washington|1964]]
| Incumbent [[1970 United States Senate election in Washington|re-elected]].
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''{{Sortname|Henry M.|Jackson}}''' (Democratic) 82.4%
* {{Party stripe|Republican Party (US)}}Charles W. Elicker (Republican) 16.0%}}
{{collapsible list|title=Others|
| {{Party stripe|Socialist Workers Party (US)}}Bill Massey (Socialist Workers) 0.9%
| {{Party stripe|Other}}E.S. "Pinky" Fisk (Buffalo) 0.7%
}}

|-
! [[#West Virginia|West Virginia]]
| {{Sortname|Robert|Byrd}} 
| {{Party shading/Democratic}} | Democratic
| [[1958 United States Senate election in West Virginia|1958]]<br />[[1964 United States Senate election in West Virginia|1964]]
| Incumbent [[1970 United States Senate election in West Virginia|re-elected]].
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''{{Sortname|Robert|Byrd}}''' (Democratic) 77.6%
* {{Party stripe|Republican Party (US)}}Elmer H. Dodson (Republican) 22.4%
}}

|-
! [[#Wisconsin|Wisconsin]]
| {{Sortname|William|Proxmire}} 
| {{Party shading/Democratic}} | Democratic
| [[1957 United States Senate special election in Wisconsin|1957 {{Small|(special)}}]]<br />[[1958 United States Senate election in Wisconsin|1958]]<br />[[1964 United States Senate election in Wisconsin|1964]]
| Incumbent [[1970 United States Senate election in Wisconsin|re-elected]].
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''{{Sortname|William|Proxmire}}''' (Democratic) 70.8%
* {{Party stripe|Republican Party (US)}}[[John E. Erickson (basketball)|John E. Erickson]] (Republican) 28.5%
}}

|-
! [[#Wyoming|Wyoming]]
| {{Sortname|Gale W.|McGee}} 
| {{Party shading/Democratic}} | Democratic
| [[1958 United States Senate election in Wyoming|1958]]<br />[[1964 United States Senate election in Wyoming|1964]]
| Incumbent [[1970 United States Senate election in Wyoming|re-elected]].
| nowrap | {{Plainlist |
* {{Party stripe|Democratic Party (US)}}{{Aye}} '''{{Sortname|Gale W.|McGee}}''' (Democratic) 55.8%
* {{Party stripe|Republican Party (US)}}[[John S. Wold]] (Republican) 44.2%
}}
|}

== Closest races ==
Fourteen races had a margin of victory under 10%:

{| class="wikitable sortable"
! State
! Party of winner
! Margin
|-
! [[#Indiana|Indiana]]
| data-sort-value=1 {{Party shading/Democratic}} | Democratic
| 0.2%
|-
! [[#New York|New York]]
| data-sort-value=1 {{Party shading/Conservative (New York)}} | Conservative (flip)
| 2.0%
|-
! [[#Ohio|Ohio]]
| data-sort-value=1 {{Party shading/Republican}} | Republican (flip)
| 2.2%
|-
! [[#Maryland|Maryland]]
| data-sort-value=1 {{Party shading/Republican}} | Republican (flip)
| 2.6%
|-
! [[#Missouri|Missouri]]
| data-sort-value=1 {{Party shading/Democratic}} | Democratic
| 3.0%
|-
! [[#Hawaii|Hawaii]]
| data-sort-value=1 {{Party shading/Republican}} | Republican
| 3.2%
|-
! [[#Tennessee|Tennessee]]
| data-sort-value=1 {{Party shading/Republican}} | Republican (flip)
| 3.9%
|-
! [[#Nebraska|Nebraska]]
| data-sort-value=1 {{Party shading/Republican}} | Republican
| 5.0%
|-
! [[#New Mexico|New Mexico]]
| data-sort-value=1 {{Party shading/Democratic}} | Democratic
| 5.7%
|-
! [[#Pennsylvania|Pennsylvania]]
| data-sort-value=1 {{Party shading/Republican}} | Republican
| 6.0%
|-
! [[#Texas|Texas]]
| data-sort-value=1 {{Party shading/Democratic}} | Democratic
| 7.1%
|-
! [[#Florida|Florida]]
| data-sort-value=1 {{Party shading/Democratic}} | Democratic
| 7.8%{{efn|[[#Florida|Florida]] was the "[[tipping-point state]]".}}
|-
! [[#Connecticut|Connecticut]]
| data-sort-value=1 {{Party shading/Republican}} | Republican (flip)
| 7.9%
|-
! [[#California|California]]
| data-sort-value=1 {{Party shading/Democratic}} | Democratic (flip)
| 9.6%
|}

== Alaska (special) ==
{{Infobox election
 | election_name      = Alaska special election
 | country            = Alaska
 | flag_year          = 1900
 | type               = presidential
 | ongoing            = no
 | previous_election  = 1966 United States Senate election in Alaska
 | previous_year      = 1966
 | next_election      = 1972 United States Senate election in Alaska
 | next_year          = 1972
 | image_size         = x136px
 | image1             = Ted_Stevens_91st_Congress_1969 (cropped).jpg
 | nominee1           = '''[[Ted Stevens]]'''
 | party1             = Republican Party (US)
 | popular_vote1      = '''47,908'''
 | percentage1        = '''59.61%'''
 | image2             = Wendell P. Kay.jpg
 | nominee2           = [[Wendell P. Kay]]
 | party2             = Democratic Party (US)
 | popular_vote2      = 32,456
 | percentage2        = 40.39%
| map_image         = 1970 United States Senate special election in Alaska by State House District.svg
| map_size          = 400px
| map_caption       = Results by state house district<br/>'''Stevens:''' {{legend0|#e27f7f|50–60%}} {{legend0|#d75d5d|60–70%}} {{legend0|#d72f30|70–80%}}<br/>'''Kay:''' {{legend0|#7996e2|50–60%}}
 | title              = U.S. senator
 | before_election    = [[Ted Stevens]]
 | before_party       = Republican Party (US)
 | after_election     = [[Ted Stevens]]
 | after_party        = Republican Party (US)
}}
{{Main|1970 United States Senate special election in Alaska}}
{{See also|List of United States senators from Alaska}}

Republican [[Ted Stevens]] was appointed December 24, 1968 to finish the term of Democrat [[Bob Bartlett]], who had died in office. The open primary was held August 25, 1970, in which Stevens received 40,411 votes (55.91%), Key received 29,459 votes (23.94%), [[Alaska Senate|State senator]] [[Joe Josephson]] received 12,730 votes (18.22%) and [[Fritz Singer]] (R) received 1,349 votes (1.93%).<ref>{{Cite web |title=AK US Senate - Special Open Primary |url=https://www.ourcampaigns.com/RaceDetail.html?RaceID=229100 |access-date=June 23, 2018 |via=OurCampaigns.com}}</ref><ref>{{cite news |author=<!--Staff writer(s)/no by-line.--> |date=August 17, 1970 |title=Josephson in Senate seat race |url=https://www.newspapers.com/newspage/16444162/ |work=Fairbanks Daily News-Miner |location=Fairbanks, Alaska |page=19 |access-date=4 October 2021 }}</ref> In the November 3, 1970 special election to finish the term, he ran against the Democratic [[Speaker of the Alaska House of Representatives]] [[Wendell P. Kay]].  Stevens easily won with almost 60% of the vote.<ref>{{Cite web |title=AK US Senate - Special |url=https://www.ourcampaigns.com/RaceDetail.html?RaceID=3264 |access-date=June 23, 2018 |via=Our Campaigns}}</ref>

{{Election box begin no change | title= 1970 United States Senate special election in Alaska<ref name="Clerk"/>
}}
{{Election box winning candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[Ted Stevens]] (Incumbent)
 | votes      = 47,908
 | percentage = 59.61
}}
{{Election box candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = Wendell P. Kay
 | votes      = 32,456
 | percentage = 40.39
}}
{{Election box majority no change
 | votes      = 14,452
 | percentage = 18.22
}}
{{Election box turnout no change
 | votes      = 80,364
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Republican Party (US)
 | loser      = 
 | swing      = 
}}
{{End}}
{{Clear}}

== Arizona ==
{{Infobox election
 | election_name      = Arizona election
 | country            = Arizona
 | type               = Presidential
 | ongoing            = no
 | previous_election  = 1964 United States Senate election in Arizona
 | previous_year      = 1964
 | next_election      = 1976 United States Senate election in Arizona
 | next_year          = 1976
 | image_size         = x136px
 | image1             = Paul Fannin.jpg
 | nominee1           = '''[[Paul Fannin]]'''
 | party1             = Republican Party (US)
 | popular_vote1      = '''228,284'''
 | percentage1        = '''55.98%'''
 | image2             = Blank2x3.svg
 | nominee2           = Sam Grossman
 | party2             = Democratic Party (US)
 | popular_vote2      = 179,512
 | percentage2        = 44.02%
| map_image = 1970 United States Senate election in Arizona results map by county.svg
| map_size = 210px
| map_caption = County results<br />'''Fannin''': {{legend0|#e27f7f|50–60%}} {{legend0|#d75d5d|60–70%}} <br />'''Grossman''': {{legend0|#7996e2|50–60%}} {{legend0|#6674de|60–70%}} {{legend0|#584cde|70–80%}}
 | title              = U.S. senator
 | before_election    = [[Paul Fannin]]
 | before_party       = Republican Party (US)
 | after_election     = [[Paul Fannin]]
 | after_party        = Republican Party (US)
}}
{{Main|1970 United States Senate election in Arizona}}
{{See also|List of United States senators from Arizona}}

Incumbent Republican [[Paul Fannin]] decided to run for re-election to a second term, running unopposed in the Republican primary. Fannin defeated Democratic businessman [[Sam Grossman]] in the general election.

{{Election box begin no change | title=Democratic primary results<ref>{{Cite web |title=AZ US Senate - D Primary Race - September 8, 1970 |url=http://www.ourcampaigns.com/RaceDetail.html?RaceID=230757 |access-date=December 19, 2017 |publisher=Our Campaigns}}</ref>
}}
{{Election box winning candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Sam Grossman]]
 | votes      = 78,006
 | percentage = 65.24
}}
{{Election box candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[John Kruglick]], Doctor
 | votes      = 27,324
 | percentage = 22.85
}}
{{Election box candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = H. L. Kelly
 | votes      = 14,238
 | percentage = 11.91
}}
{{Election box total no change
 | votes      = 119,568
 | percentage = 100.00
}}
{{End}}

{{Election box begin no change | title= 1970 United States Senate election in Arizona<ref>{{Cite web |title=AZ US Senate Race - November 3, 1970 |url=http://www.ourcampaigns.com/RaceDetail.html?RaceID=3280 |access-date=December 19, 2017 |publisher=Our Campaigns}}</ref>
}}
{{Election box winning candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[Paul Fannin]] (Incumbent)
 | votes      = 228,284
 | percentage = 55.98
}}
{{Election box candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = Sam Grossman
 | votes      = 179,512
 | percentage = 44.02
}}
{{Election box majority no change
 | votes      = 48,772
 | percentage = 11.96
}}
{{Election box turnout no change
 | votes      = 407,796
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Republican Party (US)
 | loser      = 
 | swing      = 
}}
{{End}}
{{Clear}}

== California ==
{{Infobox election
 | election_name      = California election
 | country            = California
 | type               = presidential
 | ongoing            = no
 | previous_election  = 1964 United States Senate election in California
 | previous_year      = 1964
 | next_election      = 1976 United States Senate election in California
 | next_year          = 1976
 | image_size         = x136px
 | image1             = JohnTunney.jpg
 | nominee1           = '''[[John V. Tunney]]'''
 | party1             = Democratic Party (US)
 | popular_vote1      = '''3,496,558'''
 | percentage1        = '''53.86%'''
 | image2             = GeorgeMurphy.jpg
 | nominee2           = [[George Murphy]]
 | party2             = Republican Party (US)
 | popular_vote2      = 2,877,617
 | percentage2        = 44.33%
 | map_image          = 1970 United States Senate election in California results map by county.svg
 | map_size           = 250px
 | map_caption        = County results<br />'''Tunney:''' {{legend0|#a5b0ff|40–50%}} {{legend0|#7996e2|50–60%}} {{legend0|#6674de|60–70%}}<br />'''Murphy:''' {{legend0|#ffb2b2|40–50%}} {{legend0|#e27f7f|50–60%}}
 | title              = U.S. senator
 | before_election    = [[George Murphy]]
 | before_party       = Republican Party (US)
 | after_election     = [[John V. Tunney]]
 | after_party        = Democratic Party (US)
}}
{{Main|1970 United States Senate election in California}}
{{See also|List of United States senators from California}}In 1964, Republican actor [[George Murphy]] defeated Democrat and Lyndon B. Johnson's Press Secretary, [[Pierre Salinger]], in a close contest with about 52% of the vote. Murphy faced a primary challenge from billionaire [[Norton Simon]], who took nearly 33% of the vote in the Republican primary. Democrats nominated [[John V. Tunney]] after a close-fought contest between Tunney and Representative [[George Brown Jr.]]. 

In the general election, Murphy lost re-election to Tunney by nearly ten points. Murphy's recent surgery and staunch support for the lingering [[Vietnam War]] worked against him, as did reports that he had continued to receive a salary from [[Technicolor]] after taking office.<ref name="Steinberg">{{cite news |last=Steinberg |first=Jacques |date=May 5, 1992 |title=George Murphy, Singer and Actor Who Became Senator, Dies at 89 |url=https://www.nytimes.com/1992/05/05/us/george-murphy-singer-and-actor-who-became-senator-dies-at-89.html |access-date=October 24, 2019 |work=The New York Times}}</ref> Tunney's successful Senate race in 1970 was reportedly the inspiration for the 1972 Robert Redford film ''[[The Candidate (1972 film)|The Candidate]]''.<ref>Christensen, Terry, and Hass, Peter. ''Projecting Politics: Political Messages in American Films'', p. 146</ref>{{Election box begin no change | title= 1970 United States Senate election in California<ref name="Clerk"/>
}}
{{Election box winning candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[John V. Tunney]]
 | votes      = 3,496,558
 | percentage = 53.86
}}
{{Election box candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[George Murphy]] (Incumbent)
 | votes      = 2,877,617
 | percentage = 44.32
}}
{{Election box candidate with party link no change
 | party      = Peace and Freedom Party (US)
 | candidate  = [[Robert Scheer]]
 | votes      = 61,251
 | percentage = 0.94
}}
{{Election box candidate with party link no change
 | party      = American Independent Party
 | candidate  = Charles C. Ripley
 | votes      = 56,731
 | percentage = 0.87
}}
{{Election box majority no change
 | votes      = 618,941
 | percentage = 9.54
}}
{{Election box turnout no change
 | votes      = 6,492,157
 | percentage = 
}}
{{Election box gain with party link no change
 | winner     = Democratic Party (US)
 | loser      = Republican Party (US)
 | swing      = 
}}
{{End}}
{{Clear}}

== Connecticut==

{{Infobox election
 | election_name      = Connecticut election
 | country            = Connecticut
 | type               = presidential
 | ongoing            = no
 | previous_election  = 1964 United States Senate election in Connecticut
 | previous_year      = 1964
 | next_election      = 1976 United States Senate election in Connecticut
 | next_year          = 1976
 | image_size         = x136px
 | image1             = Lweicker.jpg
 | nominee1           = '''[[Lowell P. Weicker Jr.]]'''
 | party1             = Republican Party (US)
 | popular_vote1      = '''454,721'''
 | percentage1        = '''41.74%'''
 | image2             = Blank2x3.svg
 | nominee2           = [[Joseph Duffey]]
 | party2             = Democratic Party (US)
 | popular_vote2      = 368,111
 | percentage2        = 33.79%
 | image3             = Thomasjdodd.jpg
 | nominee3           = [[Thomas J. Dodd]]
 | party3             = Independent
 | popular_vote3      = 266,497
 | percentage3        = 24.46%
| map_image = {{switcher|[[File:1970 United States Senate election in Connecticut results map by county.svg|220px]]
|County results
|[[File:1970 United States Senate election in Connecticut results map by municipality.svg|220px]]
|Municipality results}}
| map_size = 220px
| map_caption = <br/>'''Weicker:''' {{legend0|#ffc8cd|30–40%}} {{legend0|#ffb2b2|40–50%}} {{legend0|#e27f7f|50–60%}} {{legend0|#D75D5D|60–70%}} {{legend0|#d72f30|70–80%}}<br/>'''Duffey:''' {{legend0|#BDD3FF|30–40%}} {{legend0|#a5b0ff|40–50%}}
<br/>'''Dodd:''' {{legend0|#E6E6E6|30–40%}} {{legend0|#D9D9D9|40–50%}}
 | title              = U.S. senator
 | before_election    = [[Thomas J. Dodd]]
 | before_party       = Democratic Party (US)
 | after_election     = [[Lowell P. Weicker Jr.]]
 | after_party        = Republican Party (US)
}}
{{Main|1970 United States Senate election in Connecticut}}
{{See also|List of United States senators from Connecticut}}

Republican [[Lowell P. Weicker Jr.]] defeated Democrat [[Joseph Duffey]] and incumbent [[Thomas J. Dodd]] who ran this time as an independent. Dodd entered the race at the last minute and split the Democratic vote, allowing Weicker to win with only 42% of the vote.

{{Election box begin no change
 | title      = Connecticut general election<ref>[http://www.ourcampaigns.com/RaceDetail.html?RaceID=6552 Our Campaigns - CT US Senate Race - November 3, 1970<!-- Bot generated title -->]</ref>
}}
{{Election box winning candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[Lowell P. Weicker Jr.]]
 | votes      = 454,721
 | percentage = 41.74
}}
{{Election box candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Joseph Duffey]]
 | votes      = 368,111
 | percentage = 33.79
}}
{{Election box candidate with party link no change
 | party      = Independent
 | candidate  = [[Thomas J. Dodd]] (Incumbent)
 | votes      = 266,497
 | percentage = 24.46
}}
{{Election box majority no change
 | votes      = 86,610
 | percentage = 7.95
}}
{{Election box turnout no change
 | votes      = 1,089,329
 | percentage = 
}}
{{Election box hold with party link no swing
 | winner     = Republican Party (US)
}}
{{End}}
{{Clear}}

== Delaware ==
{{Infobox election
 | election_name      = 1970 United States Senate election in Delaware
 | country            = Delaware
 | type               = presidential
 | ongoing            = no
 | previous_election  = 1964 United States Senate election in Delaware
 | previous_year      = 1964
 | next_election      = 1976 United States Senate election in Delaware
 | next_year          = 1976
 | image_size         = x136px
 | image1             = Senator William V Roth.jpg
 | nominee1           = '''[[William Roth]]'''
 | party1             = Republican Party (US)
 | popular_vote1      = '''94,979'''
 | percentage1        = '''58.83%'''
 | image2             = No image.svg
 | nominee2           = Jacob W. Zimmerman
 | party2             = Democratic Party (US)
 | popular_vote2      = 64,740
 | percentage2        = 40.10%
 | map_image          = 1970 United States Senate election in Delaware results map by county.svg
 | map_size           = 200px
 | map_caption        = County Results<br />'''Roth:''' {{legend0|#e27f7f|50-60%}} {{legend0|#d75d5d|60-70%}}
 | title              = U.S. senator
 | before_election    = [[John J. Williams (politician)|John J. Williams]]
 | before_party       = Republican Party (US)
 | after_election     = [[William Roth]]
 | after_party        = Republican Party (US)
}}
{{Main|1970 United States Senate election in Delaware}}
{{See also|List of United States senators from Delaware}}Republican [[John J. Williams (politician)|John J. Williams]] was originally elected in 1946 to the U.S. Senate. Williams was easily re-elected three more times but decided to retire in 1971. Republican Representative [[William Roth]] faced Democrat potato farmer Jacob Zimmerman in the general election. Roth defeated Zimmerman by a landslide eighteen percentage points in the general election. He was re-elected in 1976, 1982, 1988, and 1994 before losing re-election to Democrat [[Tom Carper]] in 2000. This was despite the state trending Democratic; Roth himself served most of his tenure with future President [[Joe Biden]]. {{Election box begin no change | title= 1970 United States Senate election in Delaware<ref name="Clerk"/>}}

Four-term Republican John J. Williams decided to retire, rather than run for re-election. Republican William Roth easily defeated Democrat Jacob Zimmerman by a margin of eighteen percentage points, and went on to serve thirty years in the Senate.

{{Election box winning candidate with party link no change
 | party              = Republican Party (US)
 | candidate          = [[William Roth]]
 | votes              = 94,979
 | percentage         = 58.83
}}
{{Election box candidate with party link no change
 | party              = Democratic Party (US)
 | candidate          = Jacob W. Zimmerman
 | votes              = 64,740
 | percentage         = 40.10
}}
{{Election box candidate with party link no change
 | party              = American Independent Party
 | candidate          = Donald G. Gies
 | votes              = 1,720
 | percentage         = 1.07
}}
{{Election box majority no change
 | votes              = 30,239
 | percentage         = 18.73
}}
{{Election box turnout no change
 | votes              = 161,439
 | percentage         = 
}}
{{Election box hold with party link no change
 | winner             = Republican Party (US)
 | swing              = 
}}
{{End}}
{{Clear}}

== Florida ==
{{Infobox election
| election_name      = 1970 United States Senate election in Florida
| country            = Florida
| flag_year          = 1900
| type               = presidential
| ongoing            = no
| previous_election  = 1964 United States Senate election in Florida
| previous_year      = 1964
| next_election      = 1976 United States Senate election in Florida
| next_year          = 1976
| election_date      = November 3, 1970
| image_size         = 160x160px
| image1             = Senator Lawton Chiles.jpg
| nominee1           = '''[[Lawton Chiles]]'''
| party1             = Democratic Party (United States)
| popular_vote1      = '''902,438'''
| percentage1        ='''53.9%'''
| image2             = William Cato Cramer.jpg
| nominee2           = [[William C. Cramer|Bill Cramer]]
| party2             = Republican Party (United States)
| popular_vote2      = 772,817
| percentage2        = 46.1%
| map_image          = 1970 United States Senate election in Florida results map by county.svg
| map_size           = 280px
| map_caption        = County results
'''Chiles:''' {{legend0|#7996e2|50–60%}} {{legend0|#6674de|60–70%}} {{legend0|#584cde|70–80%}} {{legend0|#3933e5|80–90%}}
'''Cramer:''' {{legend0|#e27f7f|50–60%}} {{legend0|#d75d5d|60–70%}}
| title              = U.S. Senator
| before_election    = [[Spessard Holland]]
| before_party       = Democratic Party (United States)
| after_election     = [[Lawton Chiles]]
| after_party        = Democratic Party (United States)
}}
{{Main|1970 United States Senate election in Florida}}
{{See also|List of United States senators from Florida}}

Incumbent Democrat [[Spessard Holland]] retired instead of seeking a fifth term. During the Democratic primary, former [[Governor of Florida|Governor]] [[C. Farris Bryant]] and [[Florida Senate|State senator]] [[Lawton Chiles]] advanced to a [[Runoff election|run-off]], having received more votes than [[Speaker of the Florida House of Representatives]] [[Frederick H. Schultz]], attorney [[Alcee Hastings]], and [[Florida House of Representatives|State Representative]] Joel T. Daves, III. Chiles soundly defeated Bryant in the run-off election, scoring a major upset due to his comparatively small name recognition prior to the election. To acquire name recognition and media coverage, Chiles walked about {{convert|1003|mi|km}} across the state of Florida and was given the nickname "Walkin' Lawton".

The Republican primary exposed an in-party feud between Governor [[Claude R. Kirk Jr.]] and [[United States House of Representatives|U.S. Representative]] [[William C. Cramer]]. In the election, Cramer handily defeated [[G. Harrold Carswell]] and body shop owner George Balmer; the former was a [[United States Court of Appeals for the Fifth Circuit|Fifth Circuit Court of Appeals]] judge favored by Kirk and had been rejected as a [[Supreme Court of the United States]] nominee a few months prior to the primary. Chiles won the election by a relatively small margin of 7.8%, receiving 902,438 votes against Cramer's 772,817 votes.

Incumbent [[Spessard Holland]], who served in the Senate since 1946, decided to retire rather than seek a fifth term.<ref>{{Cite web |title=Spessard Lindsey Holland |url=http://dos.myflorida.com/florida-facts/florida-history/florida-governors/spessard-lindsey-holland/ |access-date=October 6, 2016 |publisher=[[Secretary of State of Florida|Florida Department of State]] |location=Tallahassee, Florida}}</ref> Although the Democratic Party had dominated state elections since the Reconstruction Era, [[Claude R. Kirk Jr.]] and [[Edward Gurney]], both Republicans, were elected senator and Governor in [[1966 Florida gubernatorial election|1966]] and [[1968 United States Senate election in Florida|1968]], respectively.<ref name="Cramer v. Kirk p. 403">"Cramer v. Kirk," p. 403</ref>

{{Election box begin no change
 | title      = Democratic Party primary results<ref name="Florida Primary">{{Cite web |title=Tabulation of Official Votes, Florida Primary Election, Democratic and Republican, September 8, 1970 and September 29, 1970 |url=http://edocs.dlis.state.fl.us/fldocs/dos/de/primaryelectionvotes_retro/1970.pdf |access-date=March 13, 2015 |publisher=Florida Secretary of State}}</ref>
}}
{{Election box winning candidate with party link no change
 | candidate  = [[C. Farris Bryant]]
 | party      = Democratic Party (US)
 | votes      = 240,222
 | percentage = 32.90
}}
{{Election box winning candidate with party link no change
 | candidate  = [[Lawton Chiles]]
 | party      = Democratic Party (US)
 | votes      = 188,300
 | percentage = 25.79
}}
{{Election box candidate with party link no change
 | candidate  = [[Frederick H. Schultz]]
 | party      = Democratic Party (US)
 | votes      = 175,745
 | percentage = 24.07
}}
{{Election box candidate with party link no change
 | candidate  = [[Alcee Hastings]]
 | party      = Democratic Party (US)
 | votes      = 91,948
 | percentage = 12.59
}}
{{Election box candidate with party link no change
 | candidate  = Joel Daves
 | party      = Democratic Party (US)
 | votes      = 33,939
 | percentage = 4.65
}}
{{Election box total no change
 | votes      = 730,154
 | percentage = 100.00
}}
{{End}}

{{Election box begin no change
 | title      = Democratic Party primary runoff results<ref name="Florida Primary" />
}}
{{Election box winning candidate with party link no change
 | candidate  = Lawton Chiles
 | party      = Democratic Party (US)
 | votes      = 474,420
 | percentage = 65.74
}}
{{Election box candidate with party link no change
 | candidate  = Farris Bryant
 | party      = Democratic Party (US)
 | votes      = 247,211
 | percentage = 34.26
}}
{{Election box total no change
 | votes      = 721,631
 | percentage = 100.00
}}
{{End}}

{{Election box begin no change
 | title      = Republican Primary results<ref name="Florida Primary" />
}}
{{Election box winning candidate with party link no change
 | candidate  = [[William C. Cramer]]
 | party      = Republican Party (US)
 | votes      = 220,553
 | percentage = 62.52
}}
{{Election box candidate with party link no change
 | candidate  = [[G. Harrold Carswell]]
 | party      = Republican Party (US)
 | votes      = 121,281
 | percentage = 34.38
}}
{{Election box candidate with party link no change
 | candidate  = George Balmer, body shop owner
 | party      = Republican Party (US)
 | votes      = 10,947
 | percentage = 3.10
}}
{{Election box total no change
 | votes      = 352,781
 | percentage = 100.00
}}
{{End}}

{{Election box begin | title= 1970 United States Senate election in Florida<ref name="Clerk"/>
}}
{{Election box winning candidate with party link
 | party      = Democratic Party (US)
 | candidate  = [[Lawton Chiles]]
 | votes      = 902,438
 | percentage = 53.87
 | change     = -10.09%
}}
{{Election box candidate with party link
 | party      = Republican Party (US)
 | candidate  = [[William C. Cramer]]
 | votes      = 772,817
 | percentage = 46.13
 | change     = +10.09%
}}
{{Election box majority
 | votes      = 129,621
 | percentage = 7.74
 | change     = -20.17%
}}
{{Election box turnout
 | votes      = 1,675,255
 | percentage = {{Data missing|?|date=February 2020}}
 | change     = {{Data missing|?|date=February 2020}}
}}
{{Election box hold with party link
 | winner     = Democratic Party (US)
 | swing      = 
}}
{{End}}
{{Clear}}

== Hawaii ==
{{Infobox election
 | election_name      = 1970 United States Senate election in Hawaii
 | country            = Hawaii
 | type               = presidential
 | ongoing            = no
 | previous_election  = 1964 United States Senate election in Hawaii
 | previous_year      = 1964
 | next_election      = 1976 United States Senate election in Hawaii
 | next_year          = 1976
 | image_size         = x140px
 | image1             = Hiram Fong.jpg
 | nominee1           = '''[[Hiram Fong]]'''
 | party1             = Republican Party (US)
 | popular_vote1      = '''124,163'''
 | percentage1        = '''51.57%'''
 | image2             = CecilHeftel.jpg
 | nominee2           = [[Cec Heftel]]
 | party2             = Democratic Party (US)
 | popular_vote2      = 116,597
 | percentage2        = 48.43%
 | map_image          = 1970 United States Senate election in Hawaii results map by county.svg
 | map_size           = 250px
 | map_caption        = '''Fong:''' {{legend0|#e27f7f|50–60%}}
 | title              = U.S. senator
 | before_election    = [[Hiram Fong]]
 | before_party       = Republican Party (US)
 | after_election     = [[Hiram Fong]]
 | after_party        = Republican Party (US)
}}
{{Main|1970 United States Senate election in Hawaii}}
{{See also|List of United States senators from Hawaii}}Republican [[Hiram Fong]] had served as the inaugural Class 1 senator from the state of [[Hawaii]] since 1959. From the state's admission into the union, voters tended to lean Democratic, and this trend only continued over time. Fong initially won election to each of his first two terms with 53% of the vote, but in 1970 he faced backlash from voters for his support of the [[Vietnam War]]. [[Cecil Heftel]], owner of a radio conglomerate, won the Democratic nomination. 

Fong was narrowly re-elected over Heftel with 52% of the vote in what would prove to be the closest election of his career. This would ultimately mark the last time that Republicans won a U.S. Senate seat in the state of Hawaii or win more than 44% of the vote.  {{Election box begin no change | title= 1970 United States Senate election in Hawaii<ref name="Clerk"/>
}}
{{Election box winning candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[Hiram Fong]] (Incumbent)
 | votes      = 124,163
 | percentage = 51.57
}}
{{Election box candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Cecil Heftel]]
 | votes      = 116,597
 | percentage = 48.43
}}
{{Election box majority no change
 | votes      = 7,566
 | percentage = 3.14
}}
{{Election box turnout no change
 | votes      = 240,760
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Republican Party (US)
 | loser      = 
 | swing      = 
}}
{{End}}
{{Clear}}

== Illinois (special) ==
{{Infobox election
 | election_name      = Illinois special election
 | country            = Illinois
 | flag_year          = 1915
 | type               = presidential
 | ongoing            = no
 | previous_election  = 1968 United States Senate election in Illinois
 | previous_year      = 1968
 | next_election      = 1974 United States Senate election in Illinois
 | next_year          = 1974
 | image_size         = x136px
 | image1             = Adlai Stevenson III 50334a (1).jpg
 | nominee1           = '''[[Adlai Stevenson III]]'''
 | party1             = Democratic Party (US)
 | popular_vote1      = '''2,065,054'''
 | percentage1        = '''57.37%'''
 | image2             = Ralph T. Smith (1).jpg
 | nominee2           = [[Ralph Tyler Smith]]
 | party2             = Republican Party (US)
 | popular_vote2      = 1,519,718
 | percentage2        = 42.22%
 | map_image          = 1970 United States Senate special election in Illinois results map by county.svg
 | map_size           = 170px
 | map_caption        = County Results<br />'''Stevenson:''' {{legend0|#7996e2|50–60%}} {{legend0|#6674de|60–70%}}<br />
'''Smith:''' {{legend0|#e27f7f|50–60%}} {{legend0|#d75d5d|60–70%}}
 | title              = U.S. senator
 | before_election    = [[Ralph Tyler Smith]]
 | before_party       = Republican Party (US)
 | after_election     = [[Adlai Stevenson III]]
 | after_party        = Democratic Party (US)
 | turnout            = 67.43%
}}
{{Main|1970 United States Senate special election in Illinois}}
{{See also|List of United States senators from Illinois}}

A special election was held to fill the remainder of the term of Republican [[Everett Dirksen]], who had [[Death in office|died in office]]. Republican [[Ralph Tyler Smith]] had been appointed to fill the seat after Dirksen's death, and he lost the special election to Democrat [[Adlai Stevenson III]].

{{Election box begin no change | title= 1970 United States Senate special election in Illinois<ref name="Clerk"/>
}}
{{Election box winning candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Adlai Stevenson III]]
 | votes      = 2,065,054
 | percentage = 57.37
}}
{{Election box candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[Ralph Tyler Smith]] (Incumbent)
 | votes      = 1,519,718
 | percentage = 42.22
}}
{{Election box candidate with party link no change
 | party      = Socialist Workers Party (US)
 | candidate  = Lynn Henderson
 | votes      = 8,859
 | percentage = 0.25
}}
{{Election box candidate with party link no change
 | party      = Socialist Labor Party of America
 | candidate  = [[Louis Fisher]]
 | votes      = 5,564
 | percentage = 0.15
}}
{{Election box candidate no change
 | party      = None
 | candidate  = Scattering
 | votes      = 77
 | percentage = 0.00
}}
{{Election box majority no change
 | votes      = 545,336
 | percentage = 15.15
}}
{{Election box turnout no change
 | votes      = 3,599,272
 | percentage = 
}}
{{Election box gain with party link no change
 | winner     = Democratic Party (US)
 | loser      = Republican Party (US)
 | swing      = 
}}
{{End}}
{{Clear}}

== Indiana ==
{{Infobox election
 | election_name      = Indiana election
 | country            = Indiana
 | type               = presidential
 | ongoing            = no
 | previous_election  = 1964 United States Senate election in Indiana
 | previous_year      = 1964
 | next_election      = 1976 United States Senate election in Indiana
 | next_year          = 1976
 | image_size         = x136px
 | image1             = Vance Hartke.jpg
 | nominee1           = '''[[Vance Hartke]]'''
 | party1             = Democratic Party (US)
 | popular_vote1      = '''870,990'''
 | percentage1        = '''50.12%'''
 | image2             = Richard L. Roudebush (Indiana Congressman).jpg
 | nominee2           = [[Richard Roudebush]]
 | party2             = Republican Party (US)
 | popular_vote2      = 866,707
 | percentage2        = 49.88%
 | map_image          = 1970 United States Senate election in Indiana results map by county.svg
 | map_size           = 250px
 | map_caption        = County Results<br /> '''Hartke:''' {{legend0|#7996e2|50–60%}} {{legend0|#6674de|60–70%}}<br /> '''Roudebush:''' {{legend0|#e27f7f|50–60%}} {{legend0|#d75d5d|60–70%}} {{legend0|#d72f30|70–80%}} 
 | title              = U.S. Senator
 | before_election    = [[Vance Hartke]]
 | before_party       = Democratic Party (US)
 | after_election     = [[Vance Hartke]]
 | after_party        = Democratic Party (US)
}}
{{Main|1970 United States Senate election in Indiana}}
{{See also|List of United States senators from Indiana}}Democrat [[Vance Hartke]] was first elected in 1958 over Republican [[Harold W. Handley]] with 56% of the vote. He won re-election in 1964 (a landslide year for Democrats) with a lower share of 54%. 

In 1970, he faced his closest contest to date against Republican Representative [[Richard L. Roudebush]]. Unlike voters in Hawaii, Indiana voters generally supported the Vietnam War, but Hartke opposed the war. This led Roudebush to run a close race that ultimately was decided after a recount. Hartke won by just about 4,200 votes. 

This would be Hartke's last win in a U.S. Senate election. In 1976, he was defeated by Republican [[Richard Lugar]]. {{Election box begin no change | title= 1970 United States Senate election in Indiana<ref name="Clerk"/><ref>{{Cite web |title=Our Campaigns - IN US Senate Race - Nov 03, 1970 |url=https://www.ourcampaigns.com/RaceDetail.html?RaceID=6541 |access-date=2020-09-11 |website=www.ourcampaigns.com}}</ref>
}}
{{Election box winning candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Vance Hartke]] (Incumbent)
 | votes      = 870,990
 | percentage = 50.12
}}
{{Election box candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[Richard L. Roudebush]]
 | votes      = 866,707
 | percentage = 49.88
}}
{{Election box majority no change
 | votes      = 4,283
 | percentage = 0.24
}}
{{Election box turnout no change
 | votes      = 1,737,697
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Democratic Party (US)
 | loser      = 
 | swing      = 
}}
{{End}}
{{Clear}}

== Maine ==
{{Infobox election
 | election_name      = Maine election
 | country            = Maine
 | type               = Presidential
 | ongoing            = no
 | previous_election  = 1964 United States Senate election in Maine
 | previous_year      = 1964
 | next_election      = 1976 United States Senate election in Maine
 | next_year          = 1976
 | image_size         = x136px
 | image1             = Edmund Muskie.jpg
 | nominee1           = '''[[Edmund Muskie]]'''
 | party1             = Democratic Party (US)
 | popular_vote1      = '''199,954'''
 | percentage1        = '''61.74%'''
 | image2             = File:Neil Bishop.jpg
 | nominee2           = [[Neil S. Bishop]]
 | party2             = Republican Party (US)
 | popular_vote2      = 123,906
 | percentage2        = 38.26%
 | map_image          = 1970 United States Senate election in Maine results map by county.svg
 | map_size           = 250px
 | map_caption        = County results <br />
'''Muskie:''' {{legend0|#7996e2|50–60%}} {{legend0|#6674de|60–70%}} {{legend0|#584cde|70–80%}} <br />
'''Bishop:''' {{legend0|#e27f7f|50–60%}}
 | title              = U.S. Senator
 | before_election    = [[Edmund Muskie]]
 | before_party       = Democratic Party (US)
 | after_election     = [[Edmund Muskie]]
 | after_party        = Democratic Party (US)
}}

{{Main|1970 United States Senate election in Maine}}
{{See also|List of United States senators from Maine}}
{{Expand section|date=August 2017}}
{{Election box begin no change | title= 1970 United States Senate election in Maine<ref name="Clerk"/>
}}
{{Election box winning candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Edmund S. Muskie]] (Incumbent)
 | votes      = 199,954
 | percentage = 61.74
}}
{{Election box candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = Neil S. Bishop
 | votes      = 123,906
 | percentage = 38.26
}}
{{Election box majority no change
 | votes      = 76,048
 | percentage = 23.48
}}
{{Election box turnout no change
 | votes      = 323,860
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Democratic Party (US)
 | loser      = 
 | swing      = 
}}
{{End}}
{{Clear}}

== Maryland ==
{{Main|1970 United States Senate election in Maryland}}
{{See also|List of United States senators from Maryland}}
{{Infobox election
 | election_name      = Maryland election
 | country            = Maryland
 | type               = presidential
 | ongoing            = no
 | previous_election  = 1964 United States Senate election in Maryland
 | previous_year      = 1964
 | next_election      = 1976 United States Senate election in Maryland
 | next_year          = 1976
 | image_size         = x136px
 | image1             = Jglennbealljr (cropped).jpg
 | nominee1           = '''[[J. Glenn Beall Jr.]]'''
 | party1             = Republican Party (US)
 | popular_vote1      = '''484,960'''
 | percentage1        = '''50.71%'''
 | image2             = Joseph d tydings.jpg
 | nominee2           = [[Joseph Tydings]]
 | party2             = Democratic Party (US)
 | popular_vote2      = 460,422
 | percentage2        = 48.14%
 | map_image          = 1970 United States Senate election in Maryland results map by county.svg
 | map_size           = 275px
 | map_caption        = County results<br />'''Beall:''' {{legend0|#e27f7f|50–60%}} {{legend0|#d75d5d|60–70%}} {{legend0|#d72f30|70–80%}}<br />'''Tydings:''' {{legend0|#7996e2|50–60%}} {{legend0|#6674de|60–70%}}
 | title              = U.S. Senator
 | before_election    = [[Joseph Tydings]]
 | before_party       = Democratic Party (US)
 | after_election     = [[J. Glenn Beall Jr.]]
 | after_party        = Republican Party (US)
}}In 1970, Republican [[J. Glenn Beall]] ran for re-election to a third term in the U.S. Senate but was defeated by Democrat [[Joseph Tydings]] in a landslide, 63-37%. Tydings ran for re-election to a second term in 1970. 

Republicans nominated Representative [[J. Glenn Beall Jr.]], the son of J. Glenn Beall. Tydings faced a primary challenge from segregationist [[George P. Mahoney]] but won with 53% of the vote. However, Republican Glenn Beall Jr. won the general election with nearly 51% of the vote to 48% for Tydings. He would serve just one term, losing in 1976 to Democrat [[Paul Sarbanes]]. {{Election box begin no change | title= 1970 United States Senate election in Maryland<ref name="Clerk"/>
}}
{{Election box winning candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[John Glenn Beall Jr.]]
 | votes      = 484,960
 | percentage = 50.71
}}
{{Election box candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Joseph D. Tydings]] (Incumbent)
 | votes      = 460,422
 | percentage = 48.14
}}
{{Election box candidate with party link no change
 | party      = American Independent Party
 | candidate  = Harvey Wilder
 | votes      = 10,988
 | percentage = 1.15
}}
{{Election box majority no change
 | votes      = 24,538
 | percentage = 2.57
}}
{{Election box turnout no change
 | votes      = 956,370
 | percentage = 
}}
{{Election box gain with party link no change
 | winner     = Republican Party (US)
 | loser      = Democratic Party (US)
 | swing      = 
}}
{{End}}
{{Clear}}

== Massachusetts ==
{{Infobox election
 | election_name      = Massachusetts election
 | country            = Massachusetts
 | flag_year          = 1908
 | type               = presidential
 | ongoing            = no
 | previous_election  = 1964 United States Senate election in Massachusetts
 | previous_year      = 1964
 | next_election      = 1976 United States Senate election in Massachusetts
 | next_year          = 1976
 | image_size         = x150px
 | image1             = Ted Kennedy, 1967 (cropped).jpg
 | nominee1           = '''[[Ted Kennedy]]'''
 | party1             = Democratic Party (US)
 | popular_vote1      = '''1,202,856'''
 | percentage1        = '''62.2%'''
 | image2             = File:JosiahSpaulding.png
 | nominee2           = [[Josiah Spaulding]]
 | party2             = Republican Party (US)
 | popular_vote2      = 715,978
 | percentage2        = 37.0%
| map_image = {{switcher
|[[File:1970 United States Senate election in Massachusetts results map by county.svg|300px]]
|County results 
|[[File:1970 United States Senate Election in Massachusetts by Municipality.svg|300px|]]
|Municipality results 
|default=1
}}
| map_size = 250px
| map_caption = 
{{col-begin}}
{{col-2}}
'''Kennedy'''
{{legend|#A5B0FF|40–50%}}
{{legend|#7996E2|50–60%}}
{{legend|#6674DE|60–70%}}
{{legend|#584CDE|70–80%}}
{{legend|#3933E5|80–90%}}
{{col-2}}
'''Spaulding'''
{{legend|#FFB2B2|40–50%}}
{{legend|#E27F7F|50–60%}}
{{legend|#D75D5D|60–70%}}
{{legend|#D72F30|70–80%}}
{{legend|#C21B18|80–90%}}
{{col-end}}
 | title              = U.S. senator
 | before_election    = [[Ted Kennedy]]
 | before_party       = Democratic Party (US)
 | after_election     = [[Ted Kennedy]]
 | after_party        = Democratic Party (US)
}}
{{Main|1970 United States Senate election in Massachusetts}}
{{See also|List of United States senators from Massachusetts}}
Incumbent Democrat [[Ted Kennedy]] defeated his challengers.  This was Kennedy's first election run since the 1969 [[Chappaquiddick incident]]. Kennedy won 62.2%, down from 74.3% that he won in the previous election in 1964; this decrease was due to numerous factors including Chappaquiddick and a far more favorable environment for the Republicans than the Democratic landslide year of 1964.

The Republican nominee was [[Josiah Spaulding]], a businessman and Republican leader in Massachusetts. He led a group of delegates at the [[1968 Republican National Convention]] who unsuccessfully sought to nominate [[Nelson A. Rockefeller]] over [[Richard Nixon]].<ref>[http://www.ourcampaigns.com/CandidateDetail.html?CandidateID=6859 Josiah Spaulding] at ourcampaigns.com</ref>

Other candidates were Lawrence Gilfedder (Socialist Labor) and [[Mark R. Shaw]] (Prohibition), a former [[Prohibition Party (United States)|Prohibition Party]] candidate for U.S. senator from Massachusetts in 1946, 1952, 1958, 1969, 1962, and 1966. He was the party's candidate for governor of Massachusetts in 1948 and 1956. In 1964, he was the Prohibition Party's candidate for vice-president of the United States.<ref>[http://www.ourcampaigns.com/CandidateDetail.html?CandidateID=35523 Mark R. Shaw] at ourcampaigns.com</ref>

{{Election box begin
 | title      = General election<ref>[http://www.ourcampaigns.com/RaceDetail.html?RaceID=6554 Massachusetts race details] at ourcampaigns.com</ref>
}}
{{Election box winning candidate with party link
 | party      = Democratic Party (US)
 | candidate  = [[Edward M. Kennedy]] (Incumbent)
 | votes      = 1,202,856
 | percentage = 62.16
 | change     = -12.1
}}
{{Election box candidate with party link
 | party      = Republican Party (US)
 | candidate  = [[Josiah Spaulding]]
 | votes      = 715,978
 | percentage = 37.00
 | change     = +11.58
}}
{{Election box candidate with party link
 | party      = Socialist Labor Party of America
 | candidate  = Lawrence Gilfedder
 | votes      = 10,378
 | percentage = 0.54
 | change     = +0.33
}}
{{Election box candidate with party link
 | party      = Prohibition Party (US)
 | candidate  = [[Mark R. Shaw]]
 | votes      = 5,944
 | percentage = 0.31
 | change     = +0.19
}}
{{Election box candidate
 | party      = None
 | candidate  = Scattering
 | votes      = 451
 | percentage = 0.02
 | change     = +0.02
}}
{{Election box majority
 | votes      = 486,878
 | percentage = 25.16
 | change     = 
}}
{{Election box turnout
 | votes      = 1,935,607
 | percentage = 
 | change     = 
}}
{{Election box hold with party link
 | winner     = Democratic Party (US)
 | loser      = 
 | swing      = 
}}
{{End}}
{{Clear}}

== Michigan ==
{{Infobox election
 | election_name      = 1970 United States Senate election in Michigan
 | country            = Michigan
 | type               = presidential
 | ongoing            = no
 | previous_election  = 1964 United States Senate election in Michigan
 | previous_year      = 1964
 | next_election      = 1976 United States Senate election in Michigan
 | next_year          = 1976
 | election_date      = November 3, 1970

 | image_size         = x145px
 | image1             = File:Philip Hart (D-MI).jpg
 | nominee1           = '''[[Philip Hart]]'''
 | party1             = Democratic Party (United States)
 | popular_vote1      = '''1,744,672'''
 | percentage1        = '''66.84%'''

 | image2             = File:Lenore Romney (cropped).jpg
 | nominee2           = [[Lenore Romney]]
 | party2             = Republican Party (United States)
 | popular_vote2      = 858,438
 | percentage2        = 32.89%

 | map_image          = 1970 United States Senate election in Michigan results map by county.svg
 | map_size           = 300px
 | map_caption        = County results<br />'''Hart''': {{legend0|#A5B0FF|40–50%}} {{legend0|#7996e2|50–60%}} {{legend0|#6674de|60–70%}} {{legend0|#584cde|70–80%}} <br />'''Romney''': {{legend0|#e27f7f|50–60%}} 
 
 | title              = U.S. Senator
 | before_election    = [[Philip Hart]]
 | before_party       = Democratic Party (United States)
 | after_election     = [[Philip Hart]]
 | after_party        = Democratic Party (United States)
}}
{{Main|1970 United States Senate election in Michigan}}
{{See also|List of United States senators from Michigan}}
{{Expand section|date=August 2017}}
{{Election box begin no change | title= 1970 United States Senate election in Michigan<ref name="Clerk"/>
}}
{{Election box winning candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Philip Hart]] (Incumbent)
 | votes      = 1,744,672
 | percentage = 66.83
}}
{{Election box candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[Lenore Romney]]
 | votes      = 858,438
 | percentage = 32.88
}}
{{Election box candidate with party link no change
 | party      = Socialist Workers Party (US)
 | candidate  = Paul Ludieu
 | votes      = 3,861
 | percentage = 0.15
}}
{{Election box candidate with party link no change
 | party      = Socialist Labor Party of America
 | candidate  = James Sim
 | votes      = 3,254
 | percentage = 0.12
}}
{{Election box candidate no change
 | party      = None
 | candidate  = Scattering
 | votes      = 538
 | percentage = 0.02
}}
{{Election box majority no change
 | votes      = 886,234
 | percentage = 33.95
}}
{{Election box turnout no change
 | votes      = 2,610,763
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Democratic Party (US)
 | loser      = 
 | swing      = 
}}
{{End}}
{{Clear}}

== Minnesota ==
{{Infobox election
| election_name = 1970 United States Senate election in Minnesota
| country = Minnesota
| flag_year = 1957
| type = presidential
| ongoing = no
| previous_election = 1964 United States Senate election in Minnesota
| previous_year = 1964
| next_election = 1976 United States Senate election in Minnesota
| next_year = 1976
| election_date = November 3, 1970
| image_size = 125x136px
| image1 = Hubert Humphrey crop.jpg
| nominee1 = '''[[Hubert H. Humphrey]]'''
| party1 = Minnesota Democratic–Farmer–Labor Party
| popular_vote1 = '''788,256'''
| percentage1 = '''57.75%'''
| image2 = Clark MacGregor.jpg
| nominee2 = [[Clark MacGregor]]
| party2 = Republican Party (United States)
| popular_vote2 = 568,025
| percentage2 = 41.62%
| map_image = 1970 United States Senate election in Minnesota results map by county.svg
| map_size  = 250px
| map_caption = County results<br />'''Humphrey:'''  {{legend0|#A5B0FF|40-50%}} {{legend0|#7996e2|50–60%}} {{legend0|#6674de|60–70%}} {{legend0|#584cde|70–80%}}<br />'''MacGregor''': {{legend0|#e27f7f|50-60%}}
| title = U.S. Senator
| before_election = [[Eugene J. McCarthy]]
| before_party = Minnesota Democratic–Farmer–Labor Party
| after_election = [[Hubert H. Humphrey]]
| after_party = Minnesota Democratic–Farmer–Labor Party
}}
{{Main|1970 United States Senate election in Minnesota}}
{{See also|List of United States senators from Minnesota}}

Incumbent Democrat [[Eugene McCarthy]] retired instead of seeking a third term. Former Democratic U.S. senator, [[Vice President of the United States|Vice President]] and [[Hubert Humphrey presidential campaign, 1968|1968 presidential nominee]] [[Hubert Humphrey]] defeated Republican [[U.S. Representative]] [[Clark MacGregor]].

{{Election box begin no change
 | title      =Democratic primary election results<ref>{{Cite web |title=MN US Senate- D Primary Race - September 15, 1970 |url=https://www.ourcampaigns.com/RaceDetail.html?RaceID=344606 |access-date=December 19, 2017 |publisher=Our Campaigns}}</ref>
}}
{{Election box winning candidate with party link no change
 | party      = Minnesota Democratic–Farmer–Labor Party
 | candidate  = Hubert H. Humphrey
 | votes      = 338,705
 | percentage = 79.25
}}
{{Election box candidate with party link no change
 | party      = Minnesota Democratic–Farmer–Labor Party
 | candidate  = Earl D. Craig
 | votes      = 88,709
 | percentage = 20.76
}}
{{End}}

{{Election box begin no change
 | title      =Republican primary election results<ref>{{Cite web |title=MN US Senate- R Primary Race - September 15, 1970 |url=https://www.ourcampaigns.com/RaceDetail.html?RaceID=344607 |access-date=December 19, 2017 |publisher=Our Campaigns}}</ref>
}}
{{Election box winning candidate with party link no change
 | party      = Republican Party (Minnesota)
 | candidate  = Clark MacGregor
 | votes      = 220,353
 | percentage = 93.31
}}
{{Election box candidate with party link no change
 | party      = Republican Party (Minnesota)
 | candidate  = John D. Baucom
 | votes      = 15,797
 | percentage = 6.69
}}
{{End}}

{{Election box begin no change
 | title      =General election results<ref>{{cite web |title=Minnesota Legislative Manual - General Election Returns, November 3, 1970 |url=https://www.leg.mn.gov/archive/sessions/electionresults/1970-11-03-g-man.pdf |publisher=Minnesota Legislature |date=1971{{endash}}1972}}</ref><ref>{{Cite web |title=MN US Senate Race - November 3, 1970 |url=https://www.ourcampaigns.com/RaceDetail.html?RaceID=6536 |access-date=December 19, 2017 |publisher=Our Campaigns}}</ref>
}}
{{Election box winning candidate with party link no change
 | party      = Minnesota Democratic–Farmer–Labor Party
 | candidate  = Hubert H. Humphrey
 | votes      = 788,256
 | percentage = 57.75
}}
{{Election box candidate with party link no change
 | party      = Republican Party (Minnesota)
 | candidate  = Clark MacGregor
 | votes      = 568,025
 | percentage = 41.62
}}
{{Election box candidate with party link no change
 | party      = Socialist Workers Party (US)
 | candidate  = Nancy Strebe
 | votes      = 6,122
 | percentage = 0.45
}}
{{Election box candidate with party link no change
 | party      = Industrial Government Party (US)
 | candidate  = William Braatz
 | votes      = 2,484
 | percentage = 0.18
}}
{{Election box majority no change
 | votes      = 220,231
 | percentage = 16.13
}}
{{Election box turnout no change
 | votes      = 1,364,887
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Minnesota Democratic–Farmer–Labor Party
 | loser      = 
 | swing      = 
}}
{{End}}
{{Clear}}

== Mississippi ==
{{Infobox election
| election_name = 1970 United States Senate election in Mississippi
| country = Mississippi
| flag_image = 
| type = presidential
| ongoing = no
| previous_election = 1964 United States Senate election in Mississippi
| previous_year = 1964
| election_date = November 3, 1970
| next_election = 1976 United States Senate election in Mississippi
| next_year = 1976
| image1 = [[File:John Stennis.jpg|x145px]]
| nominee1 = '''[[John C. Stennis]]'''
| party1 = Democratic Party (United States)
| popular_vote1 = '''286,622'''
| percentage1 = '''88.40%'''
| image2 = [[File:No image.svg|x120px]]
| nominee2 = William Richard Thompson
| party2 = Independent (United States)
| popular_vote2 = 37,593
| percentage2 = 11.60%
| map_image = 1970 United States Senate election in Mississippi results map by county.svg
| map_size = 250px
| map_caption = County results<br />'''Stennis''': {{legend0|#7996e2|50–60%}} {{legend0|#6674de|60–70%}} {{legend0|#584cde|70–80%}} {{legend0|#3933e5|80–90%}} {{legend0|#0d056c|>90%}}
| title = U.S. Senator
| before_election = [[John C. Stennis]]
| before_party = Democratic Party (US)
| after_election = [[John C. Stennis]]
| after_party = Democratic Party (US)
| flag_year = 1894
}}
{{Main|1970 United States Senate election in Mississippi}}
{{See also|List of United States senators from Mississippi}}
{{Expand section|date=August 2017}}
{{Election box begin no change | title= 1970 United States Senate election in Mississippi<ref name="Clerk"/>
}}
{{Election box winning candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[John C. Stennis]] (Incumbent)
 | votes      = 286,622
 | percentage = 88.40
}}
{{Election box candidate with party link no change
 | party      = Independent
 | candidate  = William Richard Thompson
 | votes      = 37,593
 | percentage = 11.60
}}
{{Election box majority no change
 | votes      = 249,029
 | percentage = 76.80
}}
{{Election box turnout no change
 | votes      = 324,215
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Democratic Party (US)
 | loser      = 
 | swing      = 
}}
{{End}}
{{Clear}}

== Missouri ==
{{Infobox election
 | election_name = 1970 United States Senate election in Missouri
 | country = Missouri
 | type = presidential
 | ongoing = no
 | previous_election = 1964 United States Senate election in Missouri
 | previous_year = 1964
 | next_election = 1976 United States Senate election in Missouri
 | next_year = 1976
 | election_date = November 3, 1970
 | image_size         = x145px
 | image1 = File:Stuart Symington.jpg
 | nominee1 = '''[[Stuart Symington]]'''
 | party1 = Democratic Party (United States)
 | popular_vote1 = '''1,090,067'''
 | percentage1 = '''51.03%'''
 | image2 = JohnDanforth.jpg
 | nominee2 = [[John Danforth]]
 | party2 = Republican Party (United States)
 | popular_vote2 = 813,571
 | percentage2 = 48.15%
 | map_image          = 1970 United States Senate election in Missouri results map by county.svg
 | map_size           = 255px
 | map_caption        = County Results<br />'''Symington''': {{legend0|#a5b0ff|40–50%}} {{legend0|#7996e2|50–60%}} {{legend0|#6674de|60–70%}} {{legend0|#584cde|70–80%}}<br />'''Danforth''': {{legend0|#e27f7f|50-60%}} {{legend0|#d75d5d|60-70%}} {{legend0|#d72f30|70-80%}}
 | title = U.S. Senator
 | before_election = [[Stuart Symington]]
 | before_party = Democratic Party (United States)
 | after_election = [[Stuart Symington]]
 | after_party = Democratic Party (United States)
}}
{{Main|1970 United States Senate election in Missouri}}
{{See also|List of United States senators from Missouri}}Incumbent Democrat [[Stuart Symington]] was originally elected in 1952 over Republican [[James P. Kem]] with 54% of the vote. He won re-election in landslide victories with 66% of the vote in 1958 and 1964. He ran for a fourth term in 1970. 

Symington faced little primary opposition. Republican [[Missouri Attorney General]] [[John Danforth]] won the Republican primary. In the general election, Symington led in polling, but Danforth closed the gap during the campaign and ran closely against Symington. Symington defeated Danforth 51-48%. This would be Symington's closest election to the U.S. Senate, and Danforth would succeed him in 1976, serving for three terms. {{Election box begin no change | title= 1970 United States Senate election in Missouri<ref name="Clerk"/>
}}
{{Election box winning candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Stuart Symington]] (Incumbent)
 | votes      = 654,831
 | percentage = 51.03
}}
{{Election box candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[John C. Danforth]]
 | votes      = 617,903
 | percentage = 48.15
}}
{{Election box candidate with party link no change
 | party      = American Independent Party
 | candidate  = Gene Chapman
 | votes      = 10,065
 | percentage = 0.78
}}
{{Election box candidate with party link no change
 | party      = Independent
 | candidate  = E. J. DiGirolamo
 | votes      = 513
 | percentage = 0.04
}}
{{Election box majority no change
 | votes      = 36,928
 | percentage = 2.88
}}
{{Election box turnout no change
 | votes      = 1,283,312
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Democratic Party (US)
 | loser      = 
 | swing      = 
}}
{{End}}
{{Clear}}

== Montana ==
{{Infobox election
| election_name = 1970 United States Senate election in Montana
| country = Montana
| flag_year = 1905
| type = presidential
| ongoing = no
| previous_election = 1964 United States Senate election in Montana
| previous_year = 1964
| next_election = 1976 United States Senate election in Montana
| next_year = 1976
| election_date = November 3, 1970
| image_size = 125px
| image1 = Michael Joseph Mansfield.jpg
| nominee1 = '''[[Mike Mansfield]]'''
| party1 = Democratic Party (United States)
| popular_vote1 = '''150,060'''
| percentage1 = '''60.54%'''
| image2 = No_image.png
| nominee2 = Harold E. Wallace
| party2 = Republican Party (United States)
| popular_vote2 = 97,809
| percentage2 = 39.46%
| map_image          = 1970 United States Senate election in Montana results map by county.svg
| map_size           = 300px
| map_caption        = County results<br />'''Mansfield''':  {{legend0|#7996e2|50–60%}} {{legend0|#6674de|60–70%}} {{legend0|#584cde|70–80%}}  <br />'''Wallace''':  {{legend0|#e27f7f|50-60%}} 
{{legend0|#d75d5d|60-70%}}
| title = U.S. Senator
| before_election = [[Mike Mansfield]]
| before_party = Democratic Party (United States)
| after_election = [[Mike Mansfield]]
| after_party = Democratic Party (United States)
}}
{{Main|1970 United States Senate election in Montana}}
{{See also|List of United States senators from Montana}}

Democratic incumbent [[Mike Mansfield]], the Senate Majority Leader who was first elected to the Senate in [[1952 United States Senate election in Montana|1952]], and was re-elected in [[1958 United States Senate election in Montana|1958]] and [[1964 United States Senate election in Montana|1964]], ran for re-election. Mansfield won the primary against several opponents, and advanced to the general election, where he was opposed by Harold E. Wallace, a sporting goods salesman and the Republican nominee. While his margin of victory decreased slightly from 1964, Mansfield still managed to defeat Wallace overwhelmingly, winning his fourth and (what would turn out to be his) final term in the Senate.

{{Election box begin no change
 | title      = Democratic Party primary results<ref name="Primary election results">{{Cite web |title=Report of the Official Canvass of the Vote Cast at the Primary Election Held in the State of Montana, June 2, 1970 |url=https://archive.org/stream/primaryofficial1970montrich#page/n1/mode/2up |access-date=July 4, 2014 |publisher=Montana Secretary of State}}</ref>
}}
{{Election box winning candidate with party link no change
 | candidate  = [[Mike Mansfield]] (Incumbent)
 | party      = Democratic Party (US)
 | votes      = 68,146
 | percentage = 77.17
}}
{{Election box candidate with party link no change
 | candidate  = Tom McDonald
 | party      = Democratic Party (US)
 | votes      = 10,773
 | percentage = 12.20
}}
{{Election box candidate with party link no change
 | candidate  = John W. Lawlor
 | party      = Democratic Party (US)
 | votes      = 19,384
 | percentage = 10.63
}}
{{Election box total no change
 | votes      = 88,303
 | percentage = 100.00
}}
{{End}}

{{Election box begin no change
 | title      = Republican Primary results<ref name="Primary election results" />
}}
{{Election box winning candidate with party link no change
 | candidate  = Harold E. Wallace
 | party      = Republican Party (US)
 | votes      = 45,549
 | percentage = 100.00
}}
{{Election box total no change
 | votes      = 45,549
 | percentage = 100.00
}}
{{End}}

{{Election box begin | title= 1970 United States Senate election in Montana<ref name=Clerk/>
}}
{{Election box winning candidate with party link
 | party      = Democratic Party (US)
 | candidate  = [[Mike Mansfield]] (Incumbent)
 | votes      = 150,060
 | percentage = 60.54
 | change     = -3.97%
}}
{{Election box candidate with party link
 | party      = Republican Party (US)
 | candidate  = Harold E. Wallace
 | votes      = 97,809
 | percentage = 39.46
 | change     = +3.97%
}}
{{Election box majority
 | votes      = 52,251
 | percentage = 21.08
 | change     = -7.95%
}}
{{Election box turnout
 | votes      = 247,869
 | percentage = 
 | change     = 
}}
{{Election box hold with party link
 | winner     = Democratic Party (US)
 | swing      = 
}}
{{End}}
{{Clear}}

== Nebraska ==
{{Infobox election
 | election_name      = 1970 United States Senate election in Nebraska
 | country            = Nebraska
 | flag_year          = 1925
 | type               = presidential
 | ongoing            = no
 | previous_election  = 1964 United States Senate election in Nebraska
 | previous_year      = 1964
 | next_election      = 1976 United States Senate election in Nebraska
 | next_year          = 1976
 | election_date      = November 3, 1970
 | image_size         = x155px
 | image1             = Hruskalee2.jpg
 | nominee1           = '''[[Roman Hruska]]'''
 | party1             = Republican Party (US)
 | popular_vote1      = '''240,894'''
 | percentage1        = '''52.49%'''
 | image2             = Gov. Frank Morrison.jpg
 | nominee2           = [[Frank B. Morrison]]
 | party2             = Democratic Party (US)
 | popular_vote2      = 217,681
 | percentage2        = 47.43%
 | map_image          = 1970 United States Senate election in Nebraska results map by county.svg
 | map_size           = 300px
| map_caption       = County results<br />'''Hruska''': {{legend0|#e38080 |50–60%}} {{legend0|#d85d5d|60–70%}} {{legend0|#d82b2c|70–80%}}<br />'''Morrison''': {{legend0|#7a97e3|50–60%}} {{legend0|#6675df|60–70%}}
 | title              = U.S. Senator
 | before_election    = [[Roman Hruska]]
 | before_party       = Republican Party (US)
 | after_election     = [[Roman Hruska]]
 | after_party        = Republican Party (US)
}}
{{Main|1970 United States Senate election in Nebraska}}
{{See also|List of United States senators from Nebraska}}
The incumbent Republican Roman Hruska was re-elected.

{{Election box begin no change | title= 1970 United States Senate election in Nebraska<ref name="Clerk"/>
}}
{{Election box winning candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[Roman Hruska]] (Incumbent)
 | votes      = 240,894
 | percentage = 52.49
}}
{{Election box candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Frank B. Morrison]]
 | votes      = 217,681
 | percentage = 47.43
}}
{{Election box candidate no change
 | party      = None
 | candidate  = Scattering
 | votes      = 391
 | percentage = 0.09
}}
{{Election box majority no change
 | votes      = 23,213
 | percentage = 5.06
}}
{{Election box turnout no change
 | votes      = 458,966
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Republican Party (US)
 | loser      = 
 | swing      = 
}}
{{End}}
{{Clear}}

== Nevada ==
{{Infobox election
 | election_name      = Nevada election
 | country            = Nevada
 | flag_year          = 1929
 | type               = presidential
 | ongoing            = no
 | previous_election  = 1964 United States Senate election in Nevada
 | previous_year      = 1964
 | next_election      = 1976 United States Senate election in Nevada
 | next_year          = 1976
 | image_size         = x136px
 | image1             = Howard Cannon.jpg
 | nominee1           = '''[[Howard Cannon]]'''
 | party1             = Democratic Party (US)
 | popular_vote1      = '''85,187'''
 | percentage1        = '''57.7%'''
 | image2             = William raggio NV state senate.jpg
 | nominee2           = [[William Raggio]]
 | party2             = Republican Party (US)
 | popular_vote2      = 60,838
 | percentage2        = 41.2%
| map_image = 1970 United States Senate election in Nevada results map by county.svg
| map_size = 230px
| map_caption = County results<br />'''Cannon''': {{legend0|#a5b0ff|40–50%}} 
 {{legend0|#7996e2|50–60%}} {{legend0|#6674de|60–70%}}<br />'''Raggio''': {{legend0|#e27f7f|50–60%}} {{legend0|#d75d5d|60–70%}}
 | title              = U.S. senator
 | before_election    = [[Howard Cannon]]
 | before_party       = Democratic Party (US)
 | after_election     = [[Howard Cannon]]
 | after_party        = Democratic Party (US)
}}
{{Main|1970 United States Senate election in Nevada}}
{{See also|List of United States senators from Nevada}}

Democrat [[Howard Cannon]], the incumbent since 1959, won re-election to a third term over [[William Raggio]], the [[Washoe County, Nevada|Washoe County]] [[District Attorney]].

In the Senate, Cannon was known as a moderate in the Democratic Party. He served as chairman of several committees, including the rules committee and the inaugural arrangements committee. Cannon was nearly defeated for re-election in 1964 by Republican Lieutenant Governor [[Paul Laxalt]] in one of the closest election in history. However, he became more popular over the next few years and defeated D.A. [[William Raggio]], whose 1970 senate campaign began his long political career. Raggio ran for the [[Nevada Senate]] in 1972 and won. He then served there for decades to come.

{{Election box begin | title=General election results<ref name="Clerk" />
}}
{{Election box winning candidate with party link
 | party      = Democratic Party (US)
 | candidate  = [[Howard Cannon]] (Incumbent)
 | votes      = 85,187
 | percentage = 57.65
 | change     = +7.63%
}}
{{Election box candidate with party link
 | party      = Republican Party (US)
 | candidate  = [[William Raggio]]
 | votes      = 60,838
 | percentage = 41.17
 | change     = -8.81%
}}
{{Election box candidate with party link
 | party      = American Independent Party
 | candidate  = [[Harold G. DeSellem]]
 | votes      = 1,743
 | percentage = 1.18
 | change     = 
}}
{{Election box majority
 | votes      = 24,349
 | percentage = 16.48
 | change     = +16.44%
}}
{{Election box turnout
 | votes      = 147,768
 | percentage = 
 | change     = 
}}
{{Election box hold with party link
 | winner     = Democratic Party (US)
 | loser      = 
 | swing      = 
}}
{{End}}
{{Clear}}

== New Jersey ==
{{Infobox election
 | election_name      = New Jersey election
 | country            = New Jersey
 | type               = Presidential
 | ongoing            = no
 | previous_election  = 1964 United States Senate election in New Jersey
 | previous_year      = 1964
 | next_election      = 1976 United States Senate election in New Jersey
 | next_year          = 1976
 | image_size         = x136px
 | image1             = Harrison Williams(D-NJ).jpg
 | nominee1           = '''[[Harrison A. Williams]]'''
 | party1             = Democratic Party (United States) 
 | popular_vote1      = '''1,157,074'''
 | percentage1        = '''54.02%'''
 | image2             = Nelson Gross 1970 (cropped).jpg
 | nominee2           = [[Nelson G. Gross]]
 | party2             = Republican Party (United States) 
 | popular_vote2      = 903,026
 | percentage2        = 42.16%
 | map_image          = 1970 United States Senate election in New Jersey results map by county.svg
 | map_size           = 225px
 | map_caption        = County Results<br />'''Williams''': {{legend0|#a5b0ff|40–50%}} {{legend0|#7996e2|50–60%}} {{legend0|#6674de|60–70%}}<br />'''Gross''': {{legend0|#ffb2b2|40–50%}} {{legend0|#e27f7f|50-60%}}
 | title              = U.S. senator
 | before_election    = [[Harrison A. Williams]]
 | before_party       = Democratic Party (US)
 | after_election     = [[Harrison A. Williams]]
 | after_party        = Democratic Party (US)
}}
{{Main|1970 United States Senate election in New Jersey}}
{{See also|List of United States senators from New Jersey}}
{{Expand section|date=August 2017}}
{{Election box begin no change | title= 1970 United States Senate election in New Jersey<ref name="Clerk"/>
}}
{{Election box winning candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Harrison A. Williams]] (Incumbent)
 | votes      = 1,157,074
 | percentage = 56.17
}}
{{Election box candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[Nelson G. Gross]]
 | votes      = 903,026
 | percentage = 43.83
}}
{{Election box majority no change
 | votes      = 254,048
 | percentage = 12.34
}}
{{Election box turnout no change
 | votes      = 2,060,100
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Democratic Party (US)
 | loser      = 
 | swing      = 
}}
{{End}}
{{Clear}}

== New Mexico ==
{{Infobox election
 | election_name      = New Mexico election
 | country            = New Mexico
 | type               = presidential
 | ongoing            = no
 | previous_election  = 1964 United States Senate election in New Mexico
 | previous_year      = 1964
 | next_election      = 1976 United States Senate election in New Mexico
 | next_year          = 1976
 | image_size         = x136px
 | image1             = Joseph M Montoya.jpg
 | nominee1           = '''[[Joseph Montoya]]'''
 | party1             = Democratic Party (US)
 | popular_vote1      = '''151,486'''
 | percentage1        = '''52.3%'''
 | image2             = No image.svg
 | nominee2           = [[Anderson Carter]]
 | party2             = Republican Party (US)
 | popular_vote2      = 135,004
 | percentage2        = 46.6%
 | map_image          = 1970 United States Senate election in New Mexico results map by county.svg
 | map_size           = 200px
| map_caption = County results<br/>'''Montoya''': {{legend0|#7996e2|50–60%}} {{legend0|#6674de|60–70%}} <br/>'''Carter''': {{legend0|#ffb2b2|40–50%}} {{legend0|#e27f7f|50–60%}} {{legend0|#d75d5d|60–70%}}
 | title              = U.S. senator
 | before_election    = [[Joseph Montoya]]
 | before_party       = Democratic Party (US)
 | after_election     = [[Joseph Montoya]]
 | after_party        = Democratic Party (US)
}}
{{Main|1970 United States Senate election in New Mexico}}
{{See also|List of United States senators from New Mexico}}

Incumbent Democrat [[Joseph Montoya]] successfully ran for re-election to a second term, defeating Republican [[Anderson Carter]].

{{Election box begin no change| title=Democratic primary results<ref>{{Cite web |title=NM US Senate - D Primary |url=http://www.ourcampaigns.com/RaceDetail.html?RaceID=342909 |access-date=March 16, 2014 |publisher=OurCampaigns}}</ref>
}}
{{Election box winning candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Joseph Montoya]], Incumbent
 | votes      = 85,285
 | percentage = 73.10
}}
{{Election box candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Richard B. Edwards]]
 | votes      = 31,381
 | percentage = 26.90
}}
{{Election box majority no change
 | votes      = 53,904
 | percentage = 46.20
}}
{{Election box total no change
 | votes      = 116,666
 | percentage = 100.00
}}
{{End}}

{{Election box begin no change| title=Republican primary results<ref>{{Cite web |title=NM US Senate - R Primary |url=http://www.ourcampaigns.com/RaceDetail.html?RaceID=342910 |access-date=March 16, 2014 |publisher=OurCampaigns}}</ref>
}}
{{Election box winning candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[Anderson Carter]]
 | votes      = 32,122
 | percentage = 57.76
}}
{{Election box candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[David Cargo]], [[Governor of New Mexico]]
 | votes      = 16,951
 | percentage = 32.28
}}
{{Election box candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[Harold G. Thompson]]
 | votes      = 5,544
 | percentage = 9.97
}}
{{Election box majority no change
 | votes      = 14,171
 | percentage = 25.48
}}
{{Election box total no change
 | votes      = 55,617
 | percentage = 100.00
}}
{{End}}

{{Election box begin no change| title=General election results<ref>{{Cite web |title=NM US Senate |url=http://www.ourcampaigns.com/RaceDetail.html?RaceID=6528 |access-date=March 16, 2014 |publisher=OurCampaigns}}</ref>
}}
{{Election box winning candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Joseph Montoya]], Incumbent
 | votes      = 151,486
 | percentage = 52.26
}}
{{Election box candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[Anderson Carter]]
 | votes      = 135,004
 | percentage = 46.57
}}
{{Election box candidate no change
 | party      = People's Constitutional
 | candidate  = William Higgs
 | votes      = 3,382
 | percentage = 1.17
}}
{{Election box majority no change
 | votes      = 16,482
 | percentage = 5.69
}}
{{Election box total no change
 | votes      = 289,872
 | percentage = 100.00
}}
{{Election box hold with party link no change
 | winner     = Democratic Party (US)
 | swing      = 
}}
{{End}}
{{Clear}}

== New York ==
{{Infobox election
 | election_name      = New York election
 | country            = New York
 | type               = presidential
 | ongoing            = no
 | previous_election  = 1964 United States Senate election in New York
 | previous_year      = 1964
 | next_election      = 1976 United States Senate election in New York
 | next_year          = 1976
 | image_size         = x136px
 | image1             = JamesLBuckley.jpg
 | nominee1           = '''[[James L. Buckley]]'''
 | party1             = Conservative Party (New York)
 | popular_vote1      = '''2,288,190'''
 | percentage1        = '''38.95%'''
 | image2             = 1979 p96 Richard Ottinger.jpg
 | nominee2           = [[Richard L. Ottinger|Richard Ottinger]]
 | party2             = Democratic Party (US)
 | popular_vote2      = 2,171,232
 | percentage2        = 36.96%
 | image3             = Goodell.jpg
 | nominee3           = [[Charles Goodell]]
 | party3             = Republican Party (US)
 | popular_vote3      = 1,404,472
 | percentage3        = 23.91%
 | map_image          = 1970 United States Senate election in New York results map by county.svg
 | map_size           = 300px
| map_caption        = County results<br>'''Buckley:''' {{legend0|#fee5d5|30–40%}} {{legend0|#ffccaa|40–50%}} {{legend0|#ffb380|50–60%}} {{legend0|#ff9955|60–70%}}<br/>'''Ottinger:''' {{legend0|#BDD3FF|30–40%}} {{legend0|#A5B0FF|40–50%}}<br/>'''Goodell:''' {{legend0|#FEC8CD|30–40%}} {{legend0|#FFB2B2|40–50%}} {{legend0|#E27F7F|50–60%}}
 | title              = U.S. senator
 | before_election    = [[Charles Goodell]]
 | before_party       = Republican Party (US)
 | after_election     = [[James L. Buckley]]
 | after_party        = Conservative Party (New York)
}}
{{Main|1970 United States Senate election in New York}}
{{See also|List of United States senators from New York}}

Incumbent Republican [[Charles Goodell]], who was recently appointed to the seat by Governor [[Nelson Rockefeller]] after senator [[Bobby Kennedy]] (D) was assassinated, ran for a full term, but was defeated by the [[Conservative Party of New York State|Conservative Party of New York]] nominee [[James L. Buckley]].  Other candidates included: [[Richard Ottinger]], U.S. Congressman (1965–1971, 1975–1985), Kevin P. McGovern, [[Paul O'Dwyer]], Former [[New York City Council|New York City Council Member]] from [[Manhattan]], [[Ted Sorensen]], Former Advisor and Speechwriter to President [[John F. Kennedy]], [[Richard D. McCarthy]], U.S. Congressman (1965–1971).

{{Election box begin no change
 | title      = Conservative Party Convention results<ref name="ourcampaigns1">{{Cite web |title=NY US Senate - C Convention Race - April 7, 1970 |url=http://www.ourcampaigns.com/RaceDetail.html?RaceID=164086 |access-date=December 19, 2017 |publisher=Our Campaigns}}</ref>
}}
{{Election box winning candidate with party link no change
 | candidate  = [[James L. Buckley]]
 | party      = Conservative Party (New York)
 | votes      = 37,940
 | percentage = 91.38
}}
{{Election box candidate with party link no change
 | candidate  = Kevin P. McGovern
 | party      = Conservative Party (New York)
 | votes      = 3,580
 | percentage = 8.62
}}
{{Election box total no change
 | votes      = 41,520
 | percentage = 100.00
}}
{{End}}

{{Election box begin no change
 | title      = Democratic Party Primary results<ref>{{Cite web |title=NY US Senate - D Primary Race - June 23, 1970 |url=http://www.ourcampaigns.com/RaceDetail.html?RaceID=111823 |access-date=December 19, 2017 |publisher=Our Campaigns}}</ref>
}}
{{Election box winning candidate with party link no change
 | candidate  = [[Richard Ottinger]]
 | party      = Democratic Party (US)
 | votes      = 366,789
 | percentage = 39.61
}}
{{Election box candidate with party link no change
 | candidate  = [[Paul O'Dwyer]]
 | party      = Democratic Party (US)
 | votes      = 302,438
 | percentage = 32.66
}}
{{Election box candidate with party link no change
 | candidate  = [[Ted Sorensen]]
 | party      = Democratic Party (US)
 | votes      = 154,434
 | percentage = 16.68
}}
{{Election box candidate with party link no change
 | candidate  = [[Richard D. McCarthy]]
 | party      = Democratic Party (US)
 | votes      = 102,224
 | percentage = 11.04
}}
{{Election box total no change
 | votes      = 925,885
 | percentage = 100.00
}}
{{End}}

{{Election box begin no change
 | title      = Republican Party Convention results<ref name="ourcampaigns1" />
}}
{{Election box winning candidate with party link no change
 | candidate  = [[Charles Goodell]] (Incumbent)
 | party      = Republican Party (US)
 | votes      = 311
 | percentage = 86.39
}}
{{Election box candidate no change
 | candidate  = Abstaining
 | party      = 
 | votes      = 49
 | percentage = 13.61
}}
{{Election box total no change
 | votes      = 360
 | percentage = 100.00
}}
{{End}}

{{Election box begin no change
 | title      = Liberal Party Convention results<ref>{{Cite web |title=NY US Senate - L Convention Race - May 11, 1970 |url=http://www.ourcampaigns.com/RaceDetail.html?RaceID=226625 |access-date=December 19, 2017 |publisher=Our Campaigns}}</ref>
}}
{{Election box winning candidate with party link no change
 | candidate  = Charles Goodell (Incumbent)
 | party      = Liberal Party (New York)
 | votes      = 201
 | percentage = 67.00
}}
{{Election box candidate with party link no change
 | candidate  = Paul O'Dwyer
 | party      = Liberal Party (New York)
 | votes      = 48
 | percentage = 16.00
}}
{{Election box candidate with party link no change
 | candidate  = Richard D. McCarthy
 | party      = Liberal Party (New York)
 | votes      = 33
 | percentage = 11.00
}}
{{Election box candidate with party link no change
 | candidate  = Richard Ottinger
 | party      = Liberal Party (New York)
 | votes      = 12
 | percentage = 4.00
}}
{{Election box candidate with party link no change
 | candidate  = Ted Sorensen
 | party      = Liberal Party (New York)
 | votes      = 6
 | percentage = 2.00
}}
{{Election box total no change
 | votes      = 300
 | percentage = 100.00
}}
{{End}}

{{Election box begin no change | title=General election results<ref>{{Cite web |title=NY US Senate Race - November 3, 1970 |url=http://www.ourcampaigns.com/RaceDetail.html?RaceID=6551 |access-date=December 19, 2017 |publisher=Our Campaigns}}</ref>
}}
{{Election box winning candidate with party link no change
 | party      = Conservative Party (New York)
 | candidate  = [[James L. Buckley]]
 | votes      = 2,288,190
 | percentage = 38.95
}}
{{Election box candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = Richard Lawrence Ottinger
 | votes      = 2,171,232
 | percentage = 36.96
}}
{{Election box candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = Charles Goodell (Incumbent)
 | votes      = 1,178,679
 | percentage = 
}}
{{Election box candidate with party link no change
 | party      = Liberal Party (New York)
 | candidate  = Charles Goodell (Incumbent)
 | votes      = 225,793
 | percentage = 
}}
{{Election box candidate no change
 | party      = Republican + Liberal Party
 | candidate  = Charles Goodell (Incumbent)
 | votes      = 1,404,472
 | percentage = 23.91
}}
{{Election box candidate with party link no change
 | party      = Communist Party (US)
 | candidate  = Arnold Johnson
 | votes      = 4,097
 | percentage = 0.07
}}
{{Election box candidate with party link no change
 | party      = Socialist Workers Party (US)
 | candidate  = Kipp Dawson
 | votes      = 3,549
 | percentage = 0.06
}}
{{Election box candidate with party link no change
 | party      = Socialist Labor Party of America
 | candidate  = John Emanuel
 | votes      = 3,204
 | percentage = 0.06
}}
{{Election box majority no change
 | votes      = 116,958
 | percentage = 1.99
}}
{{Election box turnout no change
 | votes      = 5,904,744
 | percentage = 
}}
{{Election box gain with party link no change
 | winner     = Conservative Party (US)
 | loser      = Republican Party (US)
 | swing      = 
}}
{{End}}
{{Clear}}

== North Dakota ==
{{Infobox election
 | election_name      = North Dakota election
 | country            = North Dakota
 | type               = presidential
 | ongoing            = no
 | previous_election  = 1964 United States Senate election in North Dakota
 | previous_year      = 1964
 | next_election      = 1976 United States Senate election in North Dakota
 | next_year          = 1976
 | image_size         = x136px
 | image1             = Quentin Burdick.jpg
 | nominee1           = '''[[Quentin Burdick]]'''
 | party1             = North Dakota Democratic–Nonpartisan League Party
 | popular_vote1      = '''134,519'''
 | percentage1        = '''61.27%'''
 | image2             = Thomas S Kleppe.gif
 | nominee2           = [[Thomas S. Kleppe|Thomas Kleppe]]
 | party2             = Republican Party (US)
 | popular_vote2      = 82,996
 | percentage2        = 37.80%
| map_image = ND 1970 SENATE.svg
| map_size = 280px
| map_caption = County results <br />
'''Burdick:''' {{legend0|#7996e2|50-60%}} {{legend0|#6674de|60-70%}} {{legend0|#584cde|70-80%}}
'''Kleppe:''' {{legend0|#e27f7f|50-60%}} {{legend0|#d75d5d|60-70%}}
 | title              = U.S. Senator
 | before_election    = [[Quentin Burdick]]
 | before_party       = North Dakota Democratic–Nonpartisan League Party
 | after_election     = [[Quentin Burdick]]
 | after_party        = North Dakota Democratic–Nonpartisan League Party
}}
{{Main|1970 United States Senate election in North Dakota}}
{{See also|List of United States senators from North Dakota}}

Incumbent [[North Dakota Democratic–Nonpartisan League Party|Democratic-NPL Party]] Senator [[Quentin N. Burdick]] was re-elected to his third term, defeating Republican candidate [[Thomas S. Kleppe]], who later became the [[United States Secretary of the Interior]].<ref name="Clerk" />

Only Burdick filed as a Dem-NPLer, and the endorsed Republican candidate was Thomas S. Kleppe, who was finishing his second and final term as a [[United States House of Representatives|Representative]] for [[United States Congressional Delegations from North Dakota|North Dakota's second congressional district]]. Burdick and Kleppe won the primary elections for their respective parties.

One [[Independent (politician)|independent]] candidate, [[Russell Kleppe]], also filed before the deadline.

{{Election box begin no change | title=1970 United States Senate election in North Dakota<ref name="Clerk" />
}}
{{Election box winning candidate with party link no change
 | party      = North Dakota Democratic–Nonpartisan League Party
 | candidate  = [[Quentin Burdick]] (Incumbent)
 | votes      = 134,519
 | percentage = 61.27
}}
{{Election box candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[Thomas S. Kleppe]]
 | votes      = 82,996
 | percentage = 37.80
}}
{{Election box candidate with party link no change
 | party      = Independent
 | candidate  = [[Russell Kleppe]]
 | votes      = 2,045
 | percentage = 0.93
}}
{{Election box majority no change
 | votes      = 51,523
 | percentage = 23.47
}}
{{Election box turnout no change
 | votes      = 219,560
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Democratic Party (US)
 | loser      = 
 | swing      = 
}}
{{End
}}
{{Clear}}

== Ohio ==
{{Main|1970 United States Senate election in Ohio}}
{{See also|List of United States senators from Ohio}}Democrat [[Stephen M. Young]] had served in the U.S. Senate since 1958 after defeating Republican [[John W. Bricker]] in a close election. Young was re-elected in 1964 over Republican Representative [[Robert Taft Jr.]], whose father [[Robert A. Taft]] represented Ohio in the U.S. Senate from 1939 until his death in 1953. Young opted to retire in 1971. 

Taft Jr. faced a tough primary challenge against Ohio governor [[Jim Rhodes]]. He won a bitterly-fought primary by just under 6,000 votes to advance to the general election. Democrat [[Howard Metzenbaum]] competed in an equally-competitive primary, defeating former astronaut [[John Glenn]]. Metzenbaum and Glenn would both later represent Ohio in the U.S. Senate. 

Taft Jr. defeated Metzenbaum in a close election, taking nearly 50% of the vote to just above 47% for Metzenbaum. Metzenbaum would defeat Taft Jr. in a rematch election in 1976, serving until 1995 alongside Glenn. 

{{Infobox election
| election_name = 1970 United States Senate election in Ohio
| country = Ohio
| type = presidential
| ongoing = no
| previous_election = 1964 United States Senate election in Ohio
| previous_year = 1964
| next_election = 1976 United States Senate election in Ohio
| next_year = 1976
| election_date = November 3, 1970
| image_size = 125x136px
| image1 = RobertTaftJr (cropped).jpg
| nominee1 = '''[[Robert Taft Jr.]]'''
| party1 = Republican Party (United States)
| popular_vote1 = '''1,565,682'''
| percentage1 = '''49.68%'''
| image2 = File:Howard Metzenbaum.jpg
| nominee2 = [[Howard Metzenbaum]]
| party2 = Democratic Party (United States)
| popular_vote2 = 1,495,262
| percentage2 = 47.52%
| map_image = 1970 United States Senate election in Ohio results map by county.svg
| map_size = 200px
| map_caption = County results<br/>'''Taft:''' {{legend0|#ffb2b2|40–50%}} {{legend0|#e27f7f|50–60%}} {{legend0|#d75d5d|60–70%}}<br/>'''Metzenbaum:''' {{legend0|#a5b0ff|40–50%}} {{legend0|#7996e2|50–60%}}
| title = U.S. Senator
| before_election = [[Stephen M. Young]]
| before_party = Democratic Party (United States)
| after_election = [[Robert Taft Jr.]]
| after_party = Republican Party (United States)
}}
{{Election box begin no change | title= 1970 United States Senate election in Ohio<ref name="Clerk"/>
}}
{{Election box winning candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[Robert Taft Jr.]]
 | votes      = 1,565,682
 | percentage = 49.68
}}
{{Election box candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Howard M. Metzenbaum]]
 | votes      = 1,495,262
 | percentage = 47.45
}}
{{Election box candidate with party link no change
 | party      = American Independent Party
 | candidate  = Richard B. Kay
 | votes      = 61,261
 | percentage = 1.94
}}
{{Election box candidate with party link no change
 | party      = Socialist Labor Party of America
 | candidate  = John O'Neill
 | votes      = 29,069
 | percentage = 0.92
}}
{{Election box majority no change
 | votes      = 70,420
 | percentage = 2.23
}}
{{Election box turnout no change
 | votes      = 3,151,274
 | percentage = 
}}
{{Election box gain with party link no change
 | winner     = Republican Party (US)
 | loser      = Democratic Party (US)
 | swing      = 
}}
{{End}}
{{Clear}}

== Pennsylvania ==
{{Infobox election
 | election_name      = Pennsylvania election
 | country            = Pennsylvania
 | type               = presidential
 | ongoing            = no
 | previous_election  = 1964 United States Senate election in Pennsylvania
 | previous_year      = 1964
 | next_election      = 1976 United States Senate election in Pennsylvania
 | next_year          = 1976
 | image_size         = x136px
 | image1             = SenHughScott.jpg
 | nominee1           = '''[[Hugh Scott]]'''
 | party1             = Republican Party (US)
 | popular_vote1      = '''1,874,106'''
 | percentage1        = '''51.4%'''
 | image2             = Blank2x3.svg
 | nominee2           = [[William Sesler]]
 | party2             = Democratic Party (US)
 | popular_vote2      = 1,653,774
 | percentage2        = 45.4%
 | map_image          = 1970 United States Senate election in Pennsylvania results map by county.svg
 | map_size           = 250px
| map_caption = County results <br />
'''Scott:''' {{legend0|#ffb2b2|40–50%}} {{legend0|#e27f7f|50-60%}} {{legend0|#d75d5d|60-70%}} {{legend0|#d72f30|70–80%}}
'''Sesler:''' {{legend0|#a5b0ff|40–50%}} {{legend0|#7996e2|50–60%}}
 | title              = U.S. senator
 | before_election    = [[Hugh Scott]]
 | before_party       = Republican Party (US)
 | after_election     = [[Hugh Scott]]
 | after_party        = Republican Party (US)
}}
{{Main|1970 United States Senate election in Pennsylvania}}
{{See also|List of United States senators from Pennsylvania}}

Incumbent Republican [[Hugh Scott]] won re-election, defeating Democratic nominee [[Pennsylvania State Senate|State senator]] [[William Sesler]].

{{Election box begin | title=General election results<ref name=Clerk/>
}}
{{Election box winning candidate with party link
 | party      = Republican Party (US)
 | candidate  = Hugh Scott (Incumbent)
 | votes      = 1,874,106
 | percentage = 51.43
 | change     = +0.84%
}}
{{Election box candidate with party link
 | party      = Democratic Party (US)
 | candidate  = William Sesler
 | votes      = 1,653,774
 | percentage = 45.38
 | change     = -3.74%
}}
{{Election box candidate with party link
 | party      = Constitution Party (US)
 | candidate  = Frank W. Gaydosh
 | votes      = 85,813
 | percentage = 2.36
 | change     = +2.36%
}}
{{Election box candidate
 | party      = [[American Independent Party|American Independent]]
 | color      = {{party color|American Independent Party}}
 | candidate  = W. Henry McFarland
 | votes      = 18,275
 | percentage = 0.50
 | change     = +0.50%
}}
{{Election box candidate with party link
 | party      = Socialist Labor Party of America
 | candidate  = Herman A. Johnson
 | votes      = 4,375
 | percentage = 0.12
 | change     = -0.02%
}}
{{Election box candidate with party link
 | party      = Socialist Workers Party (US)
 | candidate  = Robin Maisel
 | votes      = 3,970
 | percentage = 0.11
 | change     = -0.04%
}}
{{Election box candidate
 | party      = Consumer
 | candidate  = William R. Mimms
 | votes      = 3,932
 | percentage = 0.11
 | change     = +0.11%
}}
{{Election box candidate
 | party      = N/A
 | candidate  = Other
 | votes      = 60
 | percentage = 0.00
 | change     = N/A
}}
{{Election box majority
 | votes      = 220,332
 | percentage = 6.05
 | change     = 
}}
{{Election box turnout
 | votes      = 3,644,305
 | percentage = 
 | change     = 
}}
{{Election box hold with party link
 | winner     = Republican Party (US)
 | loser      = 
 | swing      = 
}}
{{End}}
{{Clear}}

== Rhode Island ==
{{Infobox election
 | election_name      = Rhode Island election
 | country            = Rhode Island
 | type               = presidential
 | ongoing            = no
 | previous_election  = 1964 United States Senate election in Rhode Island
 | previous_year      = 1964
 | next_election      = 1976 United States Senate election in Rhode Island
 | next_year          = 1976
 | image_size         = x136px
 | image1             = John Pastore in 1961.jpg
 | nominee1           = '''[[John Pastore]]'''
 | party1             = Democratic Party (US)
 | popular_vote1      = '''230,469'''
 | percentage1        = '''67.5%'''
 | image2             = John McLaughlin in 1974.jpg
 | nominee2           = [[John McLaughlin (host)|John McLaughlin]]
 | party2             = Republican Party (US)
 | popular_vote2      = 107,351
 | percentage2        = 31.5%
| map = {{switcher
|[[File:1970 United States Senate election in Rhode Island results map by county.svg|230px]]
|County results
|[[File:1970 United States Senate election in Rhode Island results map by municipality.svg|230px]]
|Municipality results}}
| map_caption = '''Pastore''': {{legend0|#7996e2|50–60%}} {{legend0|#6674de|60–70%}} {{legend0|#584cde|70–80%}}<br />'''McLaughlin''': {{legend0|#e27f7f|50–60%}}
 | title              = U.S. Senator
 | before_election    = [[John Pastore]]
 | before_party       = Democratic Party (US)
 | after_election     = [[John Pastore]]
 | after_party        = Democratic Party (US)
}}
{{Main|1970 United States Senate election in Rhode Island}}
{{See also|List of United States senators from Rhode Island}}
{{Expand section|date=August 2017}}
{{Election box begin no change | title= 1970 United States Senate election in Rhode Island<ref name="Clerk"/>
}}
{{Election box winning candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[John O. Pastore]] (Incumbent)
 | votes      = 230,469
 | percentage = 67.54
}}
{{Election box candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = John McLaughlin
 | votes      = 107,351
 | percentage = 31.46
}}
{{Election box candidate with party link no change
 | party      = Peace and Freedom Party (US)
 | candidate  = David N. Fenton
 | votes      = 2,406
 | percentage = 0.71
}}
{{Election box candidate with party link no change
 | party      = Socialist Workers Party (US)
 | candidate  = Daniel B. Fein
 | votes      = 996
 | percentage = 0.29
}}
{{Election box majority no change
 | votes      = 123,118
 | percentage = 36.08
}}
{{Election box turnout no change
 | votes      = 341,222
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Democratic Party (US)
 | loser      = 
 | swing      = 
}}
{{End}}
{{Clear}}

== Tennessee ==
{{Infobox election
 | election_name      = 1970 United States Senate election in Tennessee
 | country            = Tennessee
 | type               = presidential
 | ongoing            = no
 | previous_election  = 1964 United States Senate election in Tennessee
 | previous_year      = 1964
 | next_election      = 1976 United States Senate election in Tennessee
 | next_year          = 1976
 | image_size         = x136px
 | image1             = Bill brock.jpg
 | nominee1           = '''[[Bill Brock]]'''
 | party1             = Republican Party (US)
 | popular_vote1      = '''562,645'''
 | percentage1        = '''51.29%'''
 | image2             = Albert Gore Sr..jpg
 | nominee2           = [[Albert Gore Sr.]]
 | party2             = Democratic Party (US)
 | popular_vote2      = 519,858
 | percentage2        = 47.39%
| map_image = 1970 United States Senate election in Tennessee results map by county.svg
| map_size = 300px
| map_caption = County results<br/>'''Brock:''' {{legend0|#e27f7f|50–60%}} {{legend0|#d75d5d|60–70%}} {{legend0|#d72f30|70–80%}} {{legend0|#c21b18|80–90%}}<br/>'''Gore:''' {{legend0|#7996e2|50–60%}} {{legend0|#6674de|60–70%}} {{legend0|#584cde|70–80%}} {{legend0|#3933e5|80–90%}}
 | title              = U.S. senator
 | before_election    = [[Albert Gore Sr.]]
 | before_party       = Democratic Party (US)
 | after_election     = [[Bill Brock]]
 | after_party        = Republican Party (US)
}}
{{Main|1970 United States Senate election in Tennessee}}
{{See also|List of United States senators from Tennessee}}
Republican [[Bill Brock]] defeated incumbent senator [[Albert Gore Sr.]]
{{Election box begin no change | title= 1970 United States Senate election in Tennessee<ref name="Clerk"/>
}}
{{Election box winning candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[Bill Brock]]
 | votes      = 562,645
 | percentage = 51.29
}}
{{Election box candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Albert Gore Sr.]] (Incumbent)
 | votes      = 519,858
 | percentage = 47.39
}}
{{Election box candidate with party link no change
 | party      = American Independent Party
 | candidate  = Cecil Pitard
 | votes      = 8,691
 | percentage = 0.79
}}
{{Election box candidate with party link no change
 | party      = Independent
 | candidate  = Dan R. East
 | votes      = 5,845
 | percentage = 0.53
}}
{{Election box candidate no change
 | party      = None
 | candidate  = Scattering
 | votes      = 2
 | percentage = 0.00
}}
{{Election box majority no change
 | votes      = 42,787
 | percentage = 3.90
}}
{{Election box turnout no change
 | votes      = 1,097,041
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Republican Party (US)
 | swing      = 
}}
{{End}}
{{Clear}}

== Texas ==
{{Infobox election
 | election_name      = 1970 United States Senate election in Texas
 | country            = Texas
 | type               = presidential
 | ongoing            = no
 | previous_election  = 1964 United States Senate election in Texas
 | previous_year      = 1964
 | next_election      = 1976 United States Senate election in Texas
 | next_year          = 1976
 | image_size         = x136px
 | image1             = Lloyd Bentsen crop.jpg
 | nominee1           = '''[[Lloyd Bentsen]]'''
 | party1             = Democratic Party (US)
 | popular_vote1      = '''1,194,069'''
 | percentage1        = '''53.3%'''
 | image2             = George HW Bush 90th congress.jpg
 | nominee2           = [[George H. W. Bush]]
 | party2             = Republican Party (US)
 | popular_vote2      = 1,035,794
 | percentage2        = 46.6%
 | map_image          = 1970 United States Senate election in Texas results map by county.svg
 | map_size           = 300px
 | map_caption = '''Bentsen''': {{legend0|#7996e2|50–60%}} {{legend0|#6674de|60–70%}} {{legend0|#584cde|70–80%}} {{legend0|#3933e5|80–90%}} {{legend0|#0d056c|>90%}}<br/>'''Bush''': {{legend0|#e27f7f|50–60%}} {{legend0|#d75d5d|60–70%}}
 | title              = U.S. senator
 | before_election    = [[Ralph Yarborough]]
 | before_party       = Democratic Party (US)
 | after_election     = [[Lloyd Bentsen]]
 | after_party        = Democratic Party (US)
}}
{{Main|1970 United States Senate election in Texas}}
{{See also|List of United States senators from Texas}}

Incumbent Democrat [[Ralph Yarborough]] was defeated by former Representative [[Lloyd Bentsen]] in the Democratic primary. Bentsen then defeated Representative [[George H. W. Bush]] in the [[general election]]. When Bush was running for president in [[1988 United States presidential election|1988]], his Democratic opponent, [[Massachusetts Governor]] [[Michael Dukakis]], selected Bentsen as his vice presidential running mate.
{{Election box begin no change | title= 1970 United States Senate election in Texas<ref name="Clerk"/>
}}
{{Election box winning candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Lloyd Bentsen]]
 | votes      = 1,226,568
 | percentage = 53.34
}}
{{Election box candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[George H. W. Bush]]
 | votes      = 1,071,234
 | percentage = 46.58
}}
{{Election box candidate no change
 | party      = None
 | candidate  = Scattering
 | votes      = 1,808
 | percentage = 0.08
}}
{{Election box majority no change
 | votes      = 155,334
 | percentage = 6.76
}}
{{Election box turnout no change
 | votes      = 2,299,610
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Democratic Party (US)
 | loser      = 
 | swing      = 
}}
{{End}}
{{Clear}}

== Utah ==
{{Infobox election
| election_name = 1970 United States Senate election in Utah
| country = Utah
| flag_year = 1922
| type = presidential
| ongoing = no
| previous_election = 1964 United States Senate election in Utah
| previous_year = 1964
| next_election = 1976 United States Senate election in Utah
| next_year = 1976
| election_date = November 3, 1970
| image_size = x150px
| image1 = File:Frank Moss.jpg
| nominee1 = '''[[Frank Moss]]'''
| party1 = Democratic Party (United States)
| popular_vote1 = '''210,207'''
| percentage1 = '''56.16%'''
| image2 = File:LaurenceJBurton.jpg
| nominee2 = [[Laurence J. Burton]]
| party2 = Republican Party (United States)
| popular_vote2 = 159,004
| percentage2 = 42.48%
| map_image = 1970 United States Senate election in Utah results map by county.svg
| map_size = 220px
| map_caption = County results<br/>'''Moss:''' {{legend0|#7996e2|50–60%}} {{legend0|#6674de|60–70%}} {{legend0|#584cde|70–80%}}<br/>'''Burton:''' {{legend0|#ffb2b2|40–50%}} {{legend0|#e27f7f|50-60%}} {{legend0|#d75d5d|60-70%}}
| title = U.S. Senator
| before_election = [[Frank Moss]]
| before_party = Democratic Party (United States)
| after_election = [[Frank Moss]]
| after_party = Democratic Party (United States)
}}
{{Main|1970 United States Senate election in Utah}}
{{See also|List of United States senators from Utah}}
{{Expand section|date=August 2017}}
{{Election box begin no change | title= 1970 United States Senate election in Utah<ref name="Clerk"/>
}}
{{Election box winning candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Frank Moss (politician)|Frank Moss]] (Incumbent)
 | votes      = 210,207
 | percentage = 56.16
}}
{{Election box candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[Laurence J. Burton]]
 | votes      = 159,004
 | percentage = 42.48
}}
{{Election box candidate with party link no change
 | party      = American Independent Party
 | candidate  = Clyde B. Freeman
 | votes      = 5,092
 | percentage = 1.36
}}
{{Election box majority no change
 | votes      = 51,203
 | percentage = 13.68
}}
{{Election box turnout no change
 | votes      = 374,303
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Democratic Party (US)
 | loser      = 
 | swing      = 
}}
{{End}}
{{Clear}}

== Vermont ==
{{Infobox election
 | election_name      = Vermont election
 | country            = Vermont
 | type               = presidential
 | image_size         = x136px
 | ongoing            = no
 | previous_election  = 1964 United States Senate election in Vermont
 | previous_year      = 1964
 | next_election      = 1972 United States Senate special election in Vermont
 | next_year          = 1972 (special)
 | image1             = WinstonProuty.jpg
 | nominee1           = '''[[Winston L. Prouty]]'''
 | party1             = Republican Party (US)
 | popular_vote1      = '''91,198'''
 | percentage1        = '''58.9%'''
 | image2             = Philip H. Hoff for Vermont Governor poster 1962 (cropped 2).jpg
 | party2             = Democratic Party (US)
 | nominee2           = [[Philip H. Hoff]]
 | popular_vote2      = 62,271
 | percentage2        = 40.2%
 | map_image          = 1970 United States Senate election in Vermont results map by county.svg
 | map_size           = 225px
 | map_caption        = County results<br />'''Prouty:''' {{legend0|#e27f7f|50–60%}} {{legend0|#d75d5d|60–70%}} {{legend0|#d72f30|70–80%}} 
 | title              = U.S. Senator
 | before_election    = [[Winston L. Prouty]]
 | before_party       = Republican Party (US)
 | after_election     = [[Winston L. Prouty]]
 | after_party        = Republican Party (US)
}}
{{Main|1970 United States Senate election in Vermont}}
{{See also|List of United States senators from Vermont}}Republican [[Winston L. Prouty]] was first elected in 1958, succeeding Republican [[Ralph Flanders]]. He was re-elected in 1964 in a realigning period for Vermont politics. Democrat [[Philip H. Hoff]] became the state's first Democratic governor since 1853, while [[William H. Meyer]] succeeded Prouty in the House of Representatives. Prouty faced a more difficult challenge in 1964 and won with just 53% of the vote. 

In 1970, Prouty faced Hoff and Meyer in the general election, with Meyer nominated by the Liberty Union party. Prouty prevailed with 59% of the vote to 40% for Hoff and just 1% for Meyer. He would not serve the full term, as he passed in 1972 and was succeeded by Republican [[Robert Stafford]]. {{Election box begin no change | title= 1970 United States Senate election in Vermont<ref name="Clerk"/>
}}
{{Election box winning candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[Winston L. Prouty]] (Incumbent)
 | votes      = 91,198
 | percentage = 58.88
}}
{{Election box candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = Philip H. Hoff
 | votes      = 62,271
 | percentage = 40.20
}}
{{Election box candidate with party link no change
 | party      = Liberty Union Party
 | candidate  = [[William H. Meyer]]
 | votes      = 1,416
 | percentage = 0.91
}}
{{Election box candidate no change
 | party      = None
 | candidate  = Scattering
 | votes      = 14
 | percentage = 0.01
}}
{{Election box majority no change
 | votes      = 28,927
 | percentage = 18.68
}}
{{Election box turnout no change
 | votes      = 154,899
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Republican Party (US)
 | loser      = 
 | swing      = 
}}
{{End}}
{{Clear}}

== Virginia ==
{{Infobox election
| election_name = Virginia election
| country = Virginia
| type = presidential
| ongoing = no
| previous_election = 1966 United States Senate special election in Virginia
| previous_year = 1966 (special)
| next_election = 1976 United States Senate election in Virginia
| next_year = 1976
| image_size = x136px
| image1 = Hbyrdjr.jpg
| nominee1 = '''[[Harry F. Byrd Jr.]]'''
| party1 = Independent
| popular_vote1 = '''506,237'''
| percentage1 = '''53.5%'''
| image2 = Blank2x3.svg
| nominee2 = [[George Rawlings]]
| party2 = Democratic Party (US)
| popular_vote2 = 294,582
| percentage2 = 31.2%
| nominee4 = [[Ray L. Garland]]
| party4 = Republican Party (US)
| popular_vote4 = 144,765
| percentage4 = 15.3%
| map_image = 1970 United States Senate election in Virginia results map by county.svg
| map_size = 300px
| map_caption = County and Independent City Results
<br />'''Byrd:''' {{legend0|#e6e6e6|30-40%}} {{legend0|#d9d9d9|40-50%}} {{legend0|#bdbdbd|50-60%}} {{legend0|#969696|60-70%}} {{legend0|#737373|70-80%}} {{legend0|#555555|80-90%}}<br />'''Rawlings:''' {{legend0|#bdd3ff|30-40%}} {{legend0|#a5b0ff|40-50%}} {{legend0|#7996e2|50-60%}} {{legend0|#584cde|70-80%}}<br />'''Garland:''' {{legend0|#ffc8cd|30-40%}} {{legend0|#ffb2b2|40-50%}} {{legend0|#e27f7f|50-60%}}
| title = U.S. senator
| before_election = [[Harry F. Byrd Jr.]]
| before_party = Democratic Party (US)
| after_election = [[Harry F. Byrd Jr.]]
| after_party = Independent politician
}}
{{Main|1970 United States Senate election in Virginia}}
{{See also|List of United States senators from Virginia}}

Incumbent [[Harry F. Byrd Jr.]] was re-elected to his first full term after winning a race 4 years earlier to finish the remainder of [[Harry F. Byrd|his father]]'s term.  He beat [[George Rawlings|George C. Rawlings Jr.]] (D), a former member of the Virginia House of Delegates, and [[Ray L. Garland]] (R), a member of Virginia House of Delegates.

{{Election box begin
 | title      = 1970 United States Senate election in Virginia<ref name="Clerk"/>
}}
{{Election box winning candidate with party link
 | party      = Independent
 | candidate  = [[Harry F. Byrd Jr.]] (Incumbent)
 | votes      = 506,237
 | percentage = 53.54
 | change     = +53.54%
}}
{{Election box candidate with party link
 | party      = Democratic Party (US)
 | candidate  = [[George Rawlings]]
 | votes      = 294,582
 | percentage = 31.15
 | change     = -22.15%
}}
{{Election box candidate with party link
 | party      = Republican Party (US)
 | candidate  = [[Ray L. Garland]]
 | votes      = 144,765
 | percentage = 15.31
 | change     = -22.07%
}}
{{Election box candidate
 | party      = Write-ins
 | candidate  = 
 | votes      = 30
 | percentage = <0.01
 | change     = -0.02%
}}
{{Election box majority
 | votes      = 211,655
 | percentage = 22.38
 | change     = +6.46%
}}
{{Election box turnout
 | votes      = 945,614
 | percentage = 
 | change     = 
}}
{{Election box gain with party link without swing
 | winner     = Independent politician
 | loser      = Democratic Party (US)
}}
{{End}}
{{Clear}}

== Washington ==
{{Infobox election
 | election_name      = Washington Election
 | country            = Washington
 | type               = presidential
 | ongoing            = no
 | previous_election  = 1964 United States Senate elections#Washington
 | previous_year      = 1964
 | next_election      = 1976 United States Senate elections#Washington
 | next_year          = 1976
 | image1             = HenryJackson.jpg
 | image_size         = x136px
 | nominee1           = '''[[Henry M. Jackson]]'''
 | party1             = Democratic Party (US)
 | popular_vote1      = '''879,385'''
 | percentage1        = '''82.43%'''
 | image2             = File:Charles Elicker.jpg
 | nominee2           = Charles W. Elicker
 | party2             = Republican Party (US)
 | popular_vote2      = 170,790
 | percentage2        = 16.01%
 | map_image = File:1970 United States Senate election in Washington results map by county.svg
 | map_size = 250px
 | map_caption = County results<br/>'''Jackson''':  {{legend0|#6674de|60–70%}} {{legend0|#584cde|70–80%}} {{legend0|#3933e5|80–90%}} {{legend0|#0d056c|>90%}}
 | title              = U.S. senator
 | before_election    = [[Henry M. Jackson]]
 | before_party       = Democratic Party (US)
 | after_election     = [[Henry M. Jackson]]
 | after_party        = Democratic Party (US)
}}
{{Main|1970 United States Senate election in Washington}}
{{See also|List of United States senators from Washington}}

{{Election box begin no change | title= 1970 United States Senate election in Washington<ref name="Clerk"/>
}}
{{Election box winning candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Henry M. Jackson]] (Incumbent)
 | votes      = 879,385
 | percentage = 82.43
}}
{{Election box candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = Charles W. Elicker
 | votes      = 170,790
 | percentage = 16.01
}}
{{Election box candidate with party link no change
 | party      = Socialist Workers Party (US)
 | candidate  = Bill Massey
 | votes      = 9,255
 | percentage = 0.87
}}
{{Election box candidate no change
 | party      = Buffalo
 | candidate  = Edison S. 'Pinky' Fisk
 | votes      = 7,377
 | percentage = 0.69
}}
{{Election box majority no change
 | votes      = 708,595
 | percentage = 66.42
 | change     = 
}}
{{Election box turnout no change
 | votes      = 1,066,807
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Democratic Party (US)
 | loser      = 
 | swing      = 
}}
{{End}}
{{Clear}}

== West Virginia ==
{{Infobox election
| election_name = 1970 United States Senate election in West Virginia
| election_date = November 3, 1970
| country = West Virginia
| type = presidential
| ongoing = no
| previous_election = 1964 United States Senate election in West Virginia
| previous_year = 1964
| next_election = 1976 United States Senate election in West Virginia
| next_year = 1976
| image1 = [[File:Robert C. Byrd – 1967.jpg|x150px]]
| nominee1 = '''[[Robert Byrd]]'''
| party1 = Democratic Party (United States)
| popular_vote1 = '''345,965'''
| percentage1 = '''77.64%'''
| image2 = [[File:No image.svg|x120px]]
| nominee2 = Elmer Dodson
| party2 = Republican Party (United States)
| popular_vote2 = 99,658
| percentage2 = 22.36%
| map_image = File:1970 United States Senate election in West Virginia results map by county.svg
| map_size = 235px
| map_caption = County results<br/>'''Byrd''': {{legend0|#6674de|60–70%}} {{legend0|#584cde|70–80%}} {{legend0|#3933e5|80–90%}}
| title = U.S. Senator
| before_election = [[Robert Byrd]]
| before_party = Democratic Party (United States)
| after_election = [[Robert Byrd]]
| after_party = Democratic Party (United States)
}}
{{Main|1970 United States Senate election in West Virginia}}
{{See also|List of United States senators from West Virginia}}
{{Expand section|date=August 2017}}
{{Election box begin no change | title= 1970 United States Senate election in West Virginia<ref name="Clerk"/>
}}
{{Election box winning candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Robert C. Byrd]] (Incumbent)
 | votes      = 345,965
 | percentage = 77.64
}}
{{Election box candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = Elmer H. Dodson
 | votes      = 99,658
 | percentage = 22.36
}}
{{Election box majority no change
 | votes      = 246,307
 | percentage = 54.28
}}
{{Election box turnout no change
 | votes      = 445,623
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Democratic Party (US)
 | loser      = 
 | swing      = 
}}
{{End}}
{{Clear}}

== Wisconsin ==
{{Infobox election
| election_name      = 1970 United States Senate election in Wisconsin
| country            = Wisconsin
| flag_year          = 1913
| type               = Presidential
| ongoing            = no
| previous_election  = 1964 United States Senate election in Wisconsin
| previous_year      = 1964
| next_election      = 1976 United States Senate election in Wisconsin
| next_year          = 1976
| election_date      = November 3, 1970
| image1             = [[File:SenatorProxmire.jpg|x150px]]
| nominee1           = '''[[William Proxmire]]'''
| party1             = Democratic Party (United States) 
| popular_vote1      = '''948,445'''
| percentage1        = '''70.83%'''
| image2             = [[File:No image.svg|x120px]]
| nominee2           = [[John E. Erickson (basketball)|John E. Erickson]]
| party2             = Republican Party (United States) 
| popular_vote2      = 381,297
| percentage2        = 28.48%
| map_image          = 1970 United States Senate election in Wisconsin results map by county.svg
| map_size           = 250px
| map_caption        = County results<br/>'''Proxmire''': {{legend0|#7996e2|50–60%}} {{legend0|#6674de|60–70%}} {{legend0|#584cde|70–80%}} {{legend0|#3933e5|80–90%}}
| title              = U.S. Senator
| before_election    = [[William Proxmire]]
| before_party       = Democratic Party (United States)
| after_election     = [[William Proxmire]]
| after_party        = Democratic Party (United States)
}}
{{Main|1970 United States Senate election in Wisconsin}}
{{See also|List of United States senators from Wisconsin}}
{{Expand section|date=August 2017}}
{{Election box begin no change | title= 1970 United States Senate election in Wisconsin<ref name="Clerk"/>
}}
{{Election box winning candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[William Proxmire]] (Incumbent)
 | votes      = 948,445
 | percentage = 70.83
}}
{{Election box candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = John E. Erickson
 | votes      = 381,297
 | percentage = 28.48
}}
{{Election box candidate with party link no change
 | party      = American Independent Party
 | candidate  = Edmond E. Hou-Seye
 | votes      = 6,137
 | percentage = 0.46
}}
{{Election box candidate with party link no change
 | party      = Independent
 | candidate  = Elizabeth (Betty) Boardman
 | votes      = 2,022
 | percentage = 0.15
}}
{{Election box candidate with party link no change
 | party      = Socialist Workers Party (US)
 | candidate  = Martha M. Quinn
 | votes      = 580
 | percentage = 0.04
}}
{{Election box candidate with party link no change
 | party      = Socialist Labor Party of America
 | candidate  = Adolf Wiggert
 | votes      = 428
 | percentage = 0.03
}}
{{Election box candidate no change
 | party      = None
 | candidate  = Scattering
 | votes      = 58
 | percentage = 0.00
}}
{{Election box majority no change
 | votes      = 567,148
 | percentage = 42.35
}}
{{Election box turnout no change
 | votes      = 1,338,967
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Democratic Party (US)
 | loser      = 
 | swing      = 
}}
{{End}}
{{Clear}}

==Wyoming ==
{{Infobox election
| election_name      = 1970 United States Senate election in Wyoming
| country            = Wyoming
| type               = presidential
| ongoing            = no
| previous_election  = 1964 United States Senate election in Wyoming
| previous_year      = 1964
| next_election      = 1976 United States Senate election in Wyoming
| next_year          = 1976
| election_date      = November 3, 1970
| image_size         = x150px
| image1             = GaleWMcGeePortrait.jpg
| nominee1           = '''[[Gale W. McGee]]'''
| party1             = Democratic Party (United States)
| popular_vote1      = '''67,207'''
| percentage1        = '''55.78%'''
| image2             = John S. Wold.jpg
| nominee2           = [[John S. Wold]]
| party2             = Republican Party (United States)
| popular_vote2      = 53,279
| percentage2        = 44.22%
| map_image          = 1970 United States Senate election in Wyoming results map by county.svg
| map_size           = 255px
| map_caption        = County results<br/>'''McGee''': {{legend0|#7996e2|50–60%}} {{legend0|#6674de|60–70%}}<br/>'''Wold''': {{legend0|#e27f7f|50–60%}} {{legend0|#d75d5d|60–70%}}
| title              = U.S. Senator
| before_election    = [[Gale W. McGee]]
| before_party       = Democratic Party (United States)
| after_election     = [[Gale W. McGee]]
| after_party        = Democratic Party (United States)
}}
{{Election box begin no change | title= 1970 United States Senate election in Wyoming<ref name="Clerk"/>
}}
{{Election box winning candidate with party link no change
 | party      = Democratic Party (US)
 | candidate  = [[Gale W. McGee]] (Incumbent)
 | votes      = 67,207
 | percentage = 55.78
}}
{{Election box candidate with party link no change
 | party      = Republican Party (US)
 | candidate  = [[John S. Wold]]
 | votes      = 53,279
 | percentage = 44.22
}}
{{Election box majority no change
 | votes      = 13,928
 | percentage = 11.56
}}
{{Election box turnout no change
 | votes      = 120,486
 | percentage = 
}}
{{Election box hold with party link no change
 | winner     = Democratic Party (US)
 | loser      = 
 | swing      = 
}}
{{End}}
{{Clear}}

==See also==
* [[1970 United States elections]]
** [[1970 United States gubernatorial elections]]
** [[1970 United States House of Representatives elections]]
* [[91st United States Congress]]
* [[92nd United States Congress]]

== Notes ==
{{Notelist}}

== References ==
{{Reflist}}

{{United States Senate elections}}
{{1970 United States elections}}

[[Category:1970 United States Senate elections| ]]
[[Category:Mike Mansfield]]