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The purpose of the filibuster is to delay the procedures of the senate so that the discussed bill will either lapse or withdraw by the majority of senators.
The filibuster is a technic that is used by one or more senators, in this tacit senator continuously debate on the issue, he may bring unnecessary topics or conversation to delay the time.
The Senate gives unlimited time to its senator to discuss any particular bill or issue, but the house of Representatives has only limited time that's why this tactic is commonly used in the senate.
Cloture- To counter this loophole in the senate, in 1917 the senate adopted a new procedure called cloture. The cloture restricts the unlimited debating time of the senate on issues, bills, and amendments to 30 hours. Initially, cloture required two-thirds votes but later it was reduced to three-fifth votes.
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