Senate Republicans vote down legislation to halt Iran war in Congress’ first vote on the conflict

Senate Majority Leader John Thune, R-S.D., center, joined at left by Sen. John Barrasso, R-Wyo., the GOP whip, speaks to reporters at the Capitol in Washington, Tuesday, March 3, 2026. (AP Photo/J. Scott Applewhite)

Senate Republicans voted down an effort Wednesday to halt President Donald Trump’s war against Iran, demonstrating early support for a conflict that has rapidly spread across the Middle East with no clear U.S. exit strategy.

The legislation, known as a war powers resolution, failed on a 47-53 vote tally. The vote fell mostly along party lines, though Republican Sen. Rand Paul of Kentucky voted in favor and Democratic Sen. John Fetterman of Pennsylvania voted against.

The war powers resolution gave lawmakers an opportunity to demand congressional approval before any further attacks are carried out. The vote forced them to take a stand on a war shaping the fate of U.S. military members, countless other lives and the future of the region.