
Filibuster and Cloture: Senate Rules That Shape Policy
Almost nothing about the modern Senate supermajority requirement appears in the Constitution. It is a product of rules, precedent and the value of floor time.
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Almost nothing about the modern Senate supermajority requirement appears in the Constitution. It is a product of rules, precedent and the value of floor time.

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The textbook diagram leaves out the parts that decide outcomes: committee gatekeeping, floor scheduling, procedural rules and the conference between chambers.