The cloture rule–Rule 22–is the only formal procedure that Senate rules provide for breaking a filibuster. A filibuster is an attempt to block or delay Senate action on a bill or other matter. Under cloture, the Senate may limit consideration of a pending matter to 30 additional hours of debate.
Learn about how the cloture process works on the Senate floor.
Senate Action on Cloture Motions 1919-present
Invoking Cloture in the Senate (pdf)
Cloture: Its Effect on Senate Proceedings (pdf)
Learn more about cloture by reading these essays from the Senate Historian’s office.
Interested in related materials? Take a look at this Virtual Reference Desk subject for more information.
