Senate Advances Iran War Powers Resolution as Louisiana’s Cassidy Flips Vote
Louisiana Republican Sen. Bill Cassidy cast the deciding vote to advance a resolution limiting Trump’s Iran war powers, just days after losing his primary.
WASHINGTON, D.C. — The U.S. Senate voted Monday to advance a War Powers Resolution aimed at limiting President Donald Trump’s military actions in Iran, with Sen. Bill Cassidy, R-La., casting the decisive vote after switching his position following seven previous rejections.
The resolution passed by a narrow 50-47 margin, marking the first time such a measure has gained sufficient Republican support to move forward to floor debate. Cassidy joined three other GOP senators who have consistently backed the measure: Lisa Murkowski of Alaska, Susan Collins of Maine, and Rand Paul of Kentucky.
Primary Loss Precedes Vote Switch
Cassidy’s vote to advance the resolution sponsored by Virginia Democratic Sen. Tim Kaine came just three days after he lost his Republican primary election on May 16. Trump had endorsed his challenger, Rep. Julia Letlow, R-La., in that contest.
Following the Senate vote, Cassidy explained his decision on social media, stating his support for dismantling Iran’s nuclear program while criticizing the administration’s lack of transparency. “While I support the administration’s efforts to dismantle Iran’s nuclear program, the White House and Pentagon have left Congress in the dark on Operation Epic Fury. In Louisiana, I’ve heard from people, including President Trump’s supporters, who are concerned about this war,” Cassidy wrote.
Congressional Authorization Concerns
The Louisiana senator continued his statement by emphasizing the need for clarity from the Trump administration. “Until the administration provides clarity, no congressional authorization or extension can be justified,” he said.
The vote represents a significant shift in Republican support for constraining Trump’s war powers regarding Iran. Previous efforts to limit the president’s military authority in the region have failed to gain traction among GOP lawmakers.
Notable Absences During Vote
Three Republican senators did not participate in Monday’s vote: Thom Tillis of North Carolina, Tommy Tuberville of Alabama, and John Cornyn of Texas. Cornyn’s absence came on the same day Trump endorsed his primary runoff challenger, state Attorney General Ken Paxton, in the Texas Senate race.
Earlier attempts to constrain Trump’s Iran military actions failed in both the House and Senate last week, though Republican opposition showed signs of weakening before Monday’s vote.
The War Powers Resolution now advances to full Senate debate, where supporters will need to maintain their coalition to pass the measure and send it to the House for consideration.
