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◆ Mixed look for CassidyForeign PolicyDefense / Military

Senate advances bill aimed at ending Iran War

Cassidy backed the Iran war powers measure for the first time after previously voting against similar resolutions.

Senate advances bill aimed at ending Iran War
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This article1 analysis · Oct 6, 2026

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May 19, 2026
tl;dr

The Senate advanced a measure to force President Donald Trump to seek congressional approval or withdraw U.S. troops from Iran, with Sen. Bill Cassidy joining supporters for the first time. The 50-47 vote showed growing Republican unease but may not be enough to move the effort forward.

Community verdict

27 VOTES
How does this story look for
Bill Cassidy R · LA · SEN
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Bill Cassidy
R · LA · SEN

Louisiana senator who joined supporters of the war powers measure

PRIMARY SUBJECT
Christopher Murphy
D · CT · SEN

Connecticut senator criticizing the rising cost of the war

Susan M. Collins
R · ME · SEN

Maine senator who supported the war powers measure

Todd Young
R · IN · SEN

Indiana senator who changed his vote on an earlier Venezuela war powers measure

Donald Trump
R · President of the United States

President whose Iran war policy the measure seeks to constrain

Lisa Murkowski
R · AK · SEN

Alaska senator who supported the war powers measure

John Fetterman
D · PA · SEN

Pennsylvania senator who voted against the measure

Mike Rounds
R · SD · SEN

South Dakota senator who supports the president's decision to go to war but wants a long-term plan

Chuck Schumer
D · NY · SEN

Senate Democratic leader supporting continued efforts to check the president

Josh Hawley
R · MO · SEN

Missouri senator who changed his vote on an earlier Venezuela war powers measure

Marco Rubio
Secretary of State

Secretary of State whose agreement to a public hearing preceded two senators changing their votes on a Venezuela measure

John Cornyn
R · TX · SEN

Texas senator whose primary opponent received Trump's endorsement

Rand Paul
R · KY · SEN

Kentucky senator who supported the war powers measure

Part of a bigger story

31 OUTLETS
Senate Advances Iran War Powers Resolution With Cassidy’s Support

The Senate advanced an Iran war-powers resolution in a 50-47 vote, with Bill Cassidy voting to move it forward. Left-leaning outlets frame Cassidy’s vote as a post-primary break with Trump and raise questions about its timing. Center outlets mainly explain the resolution, Cassidy’s support, lawmakers’ differing views and the measure’s uncertain prospects. Right-leaning outlets also connect the vote to Cassidy’s primary loss but describe it as a reversal or defection.

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