Cloture -

Wed. Sep 23rd, 2026

A photograph of the United States Senate chamber during a legislative session in 1975.

National Sovereignty

The 1975 Senate Cloture Reform: Redefining the Filibuster Threshold

In 1975, the United States Senate lowered the threshold for invoking cloture from two-thirds of those present to three-fifths of the total membership. This parliamentary realignment was intended to reduce…

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A wide shot of the U.S. Senate chamber during the 1964 debate on the Civil Rights Act.

National Sovereignty

Breaking the Southern Veto: The 1964 Senate Cloture Realignment

August 5, 2026 Miles Harrington 0 Comments

In 1964, the United States Senate achieved a historic parliamentary milestone by invoking cloture to end a record-breaking filibuster against the Civil Rights Act. This event marked a fundamental realignment…

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