Senate Passes Historic War Powers Resolution on Iran; Trump Clashes with GOP Senator Cassidy

The U.S. Senate passed an unprecedented war powers resolution on June 23, requiring President Trump to suspend military operations against Iran or obtain congressional approval before resuming hostilities. The measure passed 50–48, with four Republicans—Rand Paul, Lisa Murkowski, Susan Collins, and Bill Cassidy—joining all Democrats in support. This marks the first time since the War Powers Act of 1973 that both chambers of Congress have successfully passed such a joint resolution limiting presidential military authority. Though largely symbolic and not requiring presidential signature, the resolution reflects growing congressional and public dissatisfaction with the prolonged conflict.

Trump strongly criticized the resolution as "untimely and senseless," claiming Iran was on the verge of capitulation and that Congress had undermined his negotiating position. On June 24, tensions erupted during a private Republican Senate lunch when Trump confronted Senator Bill Cassidy, one of the four Republicans who voted for the measure. Cassidy, who lost his primary race after Trump backed a rival candidate, defended his vote by stating the war had lasted four months instead of the promised four weeks and original objectives remained unmet. The exchange became heated, with Trump reportedly raising his voice, calling Cassidy a "lunatic," and repeatedly telling him to sit down. Cassidy acknowledged matching Trump's tone but eventually sat down to de-escalate, maintaining that the American people deserved more transparency about the conflict's progress.

The resolution's passage occurs amid significant public opposition to the Iran war. Recent polling shows 52 percent of Americans view the military action as "not worth it," while Trump's approval rating has dropped to 34 percent—his lowest point in his second term. The Pentagon simultaneously requested approximately $80 billion in congressional funding, with the majority allocated to covering war expenses. Democratic leaders characterized the resolution as a rebuke of what they call Trump's "historic mistake," while some Republicans warned it could weaken the administration's negotiating position as talks continue with Iran over a long-term peace agreement.

The confrontation between Trump and Cassidy reflects broader divisions within the Republican Party. Cassidy, freed from primary electoral concerns after his defeat, has become more willing to publicly oppose Trump's policies on multiple fronts, including Ukraine aid and alleged political persecution funds. Republican colleagues largely remained silent during the lunch confrontation, with Cassidy noting that Trump "talked and talked and talked." Trump left the meeting visibly angry, telling reporters he dislikes certain individuals without naming specifics. The episode underscores Republican anxiety about narrow congressional majorities heading into November midterm elections amid unpopular military operations.