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Obstructionism in politics refers to the deliberate interference with the progress or business of a legislative body. An obstructionist is someone who hinders progress, often by using indirect or delaying tactics to obstruct business. This can lead to political gridlock and partisanship, where a minority party can block legislation supported by the majority.123

The filibuster is a tactic used in legislative bodies, particularly the U.S. Senate, that exemplifies obstructionism. It allows a senator or group of senators to delay or block a vote on a bill or other measure. Historically, filibusters have been used to impede civil rights legislation and other initiatives. This practice can allow a minority to effectively rule, even without a national mandate, and can stifle meaningful debate.453

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