Straw poll

A straw poll or straw vote is an ad-hoc or unofficial vote. Straw polls provide dialogue among movements within large groups. In meetings subject to rules of order, impromptu straw polls often are taken to see if there is enough support for an idea to devote more meeting time to it, and (when not a secret ballot) for the attendees to see who is on which side of a question. Among political bodies, straw polls often are scheduled for events at which many people interested in the polling question can be expected to vote. Sometimes polls conducted without ordinary voting controls in place (i.e., on an honor system, such as in online polls) are also called "straw polls".

The idiom may allude to a straw (thin plant stalk) held up to see in what direction the wind blows, in this case, the wind of group opinion.

United States politics

A formal straw poll is common in American political caucuses. Such straw polls can be taken before selecting delegates and voting on resolutions. The results of straw polls are taken by the media to influence delegates in caucus later (as well as delegates to political conventions), and thus serve as important precursors. Straw polls are also scheduled informally by other organizations interested in the U.S. presidential election.