Senate Republicans folded on Iran war powers late Wednesday, reversing course just hours after Donald Trump dressed down GOP senators over their resistance to his military plans. The overnight vote was the culmination of a day of intense White House pressure that included a heated Capitol Hill lunch and a last-minute briefing designed to sway holdouts.
The measure failed 47-50-1 just before midnight as the Senate departed for a two-week recess. The outcome marked a stark contrast to Tuesday, when Republicans had allowed a similar resolution to advance with Democratic support. This time, enough GOP members either switched positions or changed their approach to kill the measure.
Trump's displeasure with Tuesday's vote was immediate and personal. During a midday gathering with Senate Republicans on Capitol Hill, the president directly confronted senators who had broken ranks, singling out Louisiana's Bill Cassidy for particularly harsh criticism. Cassidy, who lost his reelection bid last month after Trump backed his opponent, challenged the president's framing of the war powers debate.
"Why would anybody vote for the War Powers Act?" Trump asked, according to Cassidy's account.
"Is that a rhetorical question, or would you like to really know?" Cassidy replied.
The exchange left tensions running high. Trump later called Cassidy a "lunatic" and branded the Republicans who voted against the war "losers" for their initial defection.
The White House moved quickly to flip votes. Within hours of the contentious lunch, Cassidy received a personal invitation to the White House for a briefing from Vice President JD Vance and Trump's special envoy Steve Witkoff. The pitch worked. Cassidy returned to Capitol Hill and voted to kill the resolution, later posting thanks for the briefing and his "concerns" being addressed.
Kentucky Republican Rand Paul, who has repeatedly sided with Democrats on war powers, took a different approach. He voted present rather than no, citing a desire to give Trump "more space and leverage to negotiate a lasting peace." The shift still amounted to a win for the White House.
Senate Majority Leader John Thune called Trump after the vote to report the victory. The president responded positively, with Thune telling reporters that Trump was "pleased with the outcome." Trump later issued a social media statement thanking Thune and pointedly noting that both Cassidy and Paul had switched their positions from the day before.
Both war powers resolutions, passed Tuesday and Wednesday respectively, carry no binding legal force. They were largely symbolic exercises that nonetheless demonstrated the internal GOP tensions over Trump's Iran policy. The fact that the president felt compelled to intervene so directly and aggressively suggested real concern that his party might actually constrain his military authority.
The swift reversal also signaled something broader about Senate Republican dynamics under Trump. Despite recent tensions between the president and GOP leaders, including Trump's unexpected decision Wednesday morning to delay signing a housing bill with overwhelming bipartisan support, most Republicans remain unwilling to directly defy him on major votes.
Author James Rodriguez: "Trump's willingness to publicly humiliate and threaten senators over a non-binding vote shows just how much he values the symbolism of unanimous party loyalty, and how easily that loyalty still breaks under pressure."
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