Anti-incumbency is sentiment in favor of voting out incumbent politicians, for the specific reason of being incumbent politicians. It is sometimes referred to as a "throw the bums out" sentiment. Periods of anti-incumbent sentiment are typically characterized by wave elections.[1] This sentiment can also lead to support for term limits.
In a two-party system, anti-incumbent voters have only one party to vote for, when voting against the incumbent; in a multi-party system, public mood, i.e., the tendency of opinions held by voters over a set of related policy issues, can determine which parties receive the anti-incumbent vote.[2]
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