Pay to play
Pay to play, sometimes pay for play, is a phrase used for a variety of situations in which money is exchanged for services or the privilege to engage (play) in certain activities. The common denominator of all forms of pay to play is that one must pay to "get in the game," with the sports analogy frequently arising.
In politics
In politics, pay to play refers to a system, akin to payola in the music industry, by which one pays (or must pay) money to become a player.
Typically, the payer (an individual, business, or organization) makes campaign contributions to public officials, party officials, or parties themselves, and receives political or pecuniary benefit such as no-bid government contracts, influence over legislation, political appointments or nominations, special access or other favors. The contributions, less frequently, may be to nonprofit or institutional entities, or may take the form of some benefit to a third party, such as a family member of a governmental official.