Cloture

In parliamentary procedure, cloture (also called closure) is a motion or process aimed at bringing debate[?] to a quick end.

For example, in the United States Senate, cloture requires a supermajority[?] of 60%. Thus, if a motion has the support of more than 50% less than 60%, then opponents can stall the Senate by engaging in repetitive debate until concessions are granted; this is a filibuster.