Trump Berates Republicans at Capitol Hill Lunch Over Iran War Powers Vote, Shouting Match Erupts With Cassidy

Since the Senate passed its war powers resolution 50-48 on Tuesday, the fight between Trump and his own party has escalated fast.

Wednesday's closed-door Republican luncheon at the Capitol was billed as a push to advance the SAVE America Act, Trump's proof-of-citizenship voting legislation. According to TIME, Fox News, and Newsday, the meeting was consumed instead by fallout from the Iran vote, the first time the Senate had formally adopted a war powers resolution on the conflict.

What Happened in the Room

Trump arrived visibly angry, according to senators present, and spent much of the lunch denouncing the four Republicans who voted with Democrats: Sens. Lisa Murkowski (R-AK), Susan Collins (R-ME), Rand Paul (R-KY), and Bill Cassidy (R-LA). He had already labeled them "losers" on social media.

Cassidy, who lost his primary earlier this year after Trump endorsed a challenger, stood up and pushed back.

"You have not told the American people what's going on," Cassidy told Trump, according to his own account reported by TIME and Newsday. "This was supposed to last four weeks, it's lasted four months. Our original objectives have not been achieved."

The two went back and forth. Newsday reported that Trump called Cassidy a "lunatic" and repeatedly told him to sit down. Cassidy told reporters he "matched his tone and volume" before someone in the room asked him to de-escalate. "I am voting for war powers until I get a briefing," Cassidy said afterward. "I did not want to be bullied."

Trump, emerging from the meeting, gave none of that away publicly. "I think we had a really great meeting," he said, per Fox News. Then added: "I don't like a few people, but that's okay."

The Transparency Problem Senators Are Raising

The strongest concern coming out of this confrontation is one about substance rather than process or partisan posturing. Republican senators, including ones generally loyal to Trump, say they have not received a full briefing on the memorandum of understanding Trump signed with Iranian leaders last week. Cassidy put it plainly: "The American people need to know more than we are being told. The Senate needs to know."

Congress has war powers authority under the Constitution. Senators being kept in the dark about the terms of a signed agreement with an adversary raises fundamental structural questions about oversight.

The Trump administration's counter-position deserves a fair hearing. Trump told TIME that ongoing negotiations are going well and that the war powers resolution hands Iran leverage at a sensitive moment. "We're doing great in our negotiations with Iran," Trump said. "Right in the middle of one of the key things, we have breaking news: The Senate has voted that they'd like Trump to stop the war. Iran sees that. It's meaningless." His argument—that public congressional pressure complicates live diplomacy—is one presidents from both parties have made.

But "trust me" is not a briefing. And the war powers resolution, whatever its symbolic weight, cannot compel Trump to withdraw forces, as TIME noted.

The Housing Bill Hangover

Wednesday's blowup at the Capitol did not happen in isolation. It landed on top of already-festering tensions over the 21st Century Road to Housing Act.

Both chambers passed that bipartisan housing bill overwhelmingly this week. Republican senators were planning to tout it as an election-year win heading into the midterms. Then, on the morning of Wednesday's meeting, Trump announced on social media that he would NOT sign it until the Senate sends him the SAVE America Act first, according to Newsday. The signing ceremony was canceled.

Fox News reported that Republican senators viewed the housing bill as "an easy win to sell to voters" and were irate at Trump for blowing it up. The GOP is trying to run on affordability issues in the midterms. Canceling a bill signing for a bipartisan housing package to extract leverage on a separate bill complicates that message.

Iran Sanctions and the Bigger Question

BBC's Americast framed the broader stakes: the U.S. is lifting decades-long sanctions on Iran without guaranteed restrictions on its nuclear program. That is the policy context underneath all of this procedural fighting. Republican senators who broke with Trump are asking a direct question: what, specifically, does the MOU require Iran to do, and what happens if they don't do it?

Lawmakers have still not received a full briefing on that document's contents, according to Fox News. Until they do, expect more dissent.

Cassidy said he will keep voting for war powers resolutions. He has nothing to lose electorally — having lost his primary, he will not be returning to the Senate after his term ends in January 2027. But Murkowski, Collins, and Paul remain in the Senate beyond that point, and their votes suggest the four-vote bloc rebuking Trump on Iran is not a one-time event.

The SAVE America Act still needs 60 votes to clear the Senate filibuster threshold, a number it has not come close to reaching.