Proposing an amendment to the Constitution of the United States to provide that debate upon legislation pending before the Senate may not be brought to a close without the concurrence of a minimum of three-fifths of the Senators.

This proposal would change the Constitution to lock in how the U.S. Senate can end debate on a bill. Debate could end only in three ways: by the rules already in place on January 3, 2025; if every Senator agrees; or if at least three-fifths of all Senators agree to close debate . This sets a firm, high bar for cutting off debate in the future.

For this change to take effect, it would need to be approved by three-fourths of state legislatures, as the Constitution requires for amendments .

• Who is affected: The U.S. Senate and, indirectly, anyone waiting on Senate action, since ending debate would still require broad agreement .
• What changes: Ending debate on Senate bills would require either unanimous consent or support from at least three-fifths of Senators, or follow the rules as they stood on January 3, 2025 .
• When: Only after the amendment is approved by three-fourths of the states; until then, nothing changes .