Senate votes 50-49 on War Powers Resolution as three Republicans break ranks

The Senate voted 50-49 on May 13, 2026, on a war powers resolution requiring Trump to withdraw U.S. forces from Iran — the closest of seven attempted resolutions since the conflict began. Senators Lisa Murkowski, Susan Collins, and Rand Paul broke with Republican leadership to vote with all Democrats, falling one vote short of the majority needed. Senate Majority Leader Thune separately blocked Murkowski's push to schedule a Republican-backed Authorization for Use of Military Force, leaving the conflict legally unauthorized under the War Powers Resolution's expired 60-day clock.