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◆ Mixed look for TrumpForeign PolicyDefense / Military

Senate advances bill aimed at ending Iran War

The measure seeks to compel Trump to withdraw from the Iran war, which he ordered, as senators debate congressional authority over the conflict.

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 aimed at making President Donald Trump withdraw from the Iran war in a 50-47 vote, with Louisiana Sen. Bill Cassidy joining supporters for the first time. The vote highlighted growing Republican unease about the conflict, though the effort may not advance further.

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32 VOTES
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Donald Trump R · President of the United States
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Donald Trump
R · President of the United States

President whose Iran war the Senate measure seeks to end

PRIMARY SUBJECT
Bill Cassidy
R · LA · SEN

Louisiana senator who supported the Senate war-powers measure

Cassidy's version of this story ↗
Christopher Murphy
D · CT · SEN

Connecticut senator who criticized the war’s economic effects in a floor speech

Susan M. Collins
R · ME · SEN

Maine senator who voted for the measure

Todd Young
R · IN · SEN

Indiana senator who later reversed his support for a Venezuela war-powers measure

Lisa Murkowski
R · AK · SEN

Alaska senator who voted for the measure

John Fetterman
D · PA · SEN

Pennsylvania senator who voted against the measure

Mike Rounds
R · SD · SEN

South Dakota senator who supports the war but said Republicans want a longer-term plan

Chuck Schumer
D · NY · SEN

Senate Democratic leader who said Democrats would continue pressing for limits on the war

Josh Hawley
R · MO · SEN

Missouri senator who later reversed his support for a Venezuela war-powers measure

Marco Rubio
Secretary of State

Secretary of State who agreed to a public hearing on the administration’s Venezuela strategy

John Cornyn
R · TX · SEN

Texas senator whose primary opponent Trump endorsed

Rand Paul
R · KY · SEN

Kentucky senator who voted for the measure

Part of a bigger story

15 OUTLETS
Senate Advances Iran War Powers Measure Requiring Approval or Troop Withdrawal

The Senate advanced a war-powers measure seeking to require President Donald Trump to withdraw U.S. forces from Iran or obtain congressional approval, challenging his continued military campaign. Center outlets largely present the vote as a congressional challenge to Trump’s Iran war, highlighting Sen. Bill Cassidy’s support and signs of Republican unease; some also note uncertainty about the measure’s path.

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