Answer:
To invoke cloture.
Step-by-step explanation:
The filibuster is a political tactic or procedure employed by members of the Senate, wherein one or more members intentionally give long and often irrelevant speeches to debate a proposed piece of legislation, in order to delay or prevent the chamber from voting on a bill, an amendment, or motion,
When this happens, the Senate’s only defense to a filibuster is to invoke cloture, which is the only formal procedure to end a filibuster. However, only if three-fifths of the Senators vote in the affirmative, cloture is invoked.
Afterward, the Senate sets a series of conditions and constraints to end the debate such as only 30-Hour Time Cap to consider the bill, amendment or motion in question, and 1-hour time cap of debate per senator.