President Donald Trump reminded Senate Republicans on Wednesday that he has little patience for members of his party who break ranks. During a closed-door lunch on Capitol Hill, Trump reportedly clashed with Sen. Bill Cassidy, the Louisiana Republican who lost his primary earlier this year after the president endorsed Rep. Julia Letlow. At one point, Trump ordered Cassidy to sit down after the senator challenged him during a heated discussion over Iran.
The confrontation came just one day after Cassidy joined Democrats and three other Republicans in backing a War Powers Resolution aimed at limiting further U.S. military involvement involving Iran. Though largely symbolic, the measure exposed lingering divisions between Trump and a handful of Senate Republicans willing to oppose him on major issues.
Cassidy later acknowledged tempers flared.
“He raised his voice. I lost my temper. That’s not appropriate. It’s the Irish in me, but I again matched his tone and his volume,” Cassidy told reporters.
Still, Cassidy defended confronting the president.
“I make no apologies for standing up to the president,” he said. “I am sticking up for the American people, even if I’m speaking to the president.”
According to senators familiar with the meeting, Trump made little effort to hide his frustration with Republicans who sided with Democrats on the Iran vote. Alaska Sen. Lisa Murkowski, another Republican who backed the resolution, also reportedly drew criticism after arriving late. It’s the second time in a month that Republican senators have had a testy meeting with the president.
Several senators later downplayed the tension. Sen. Tommy Tuberville described the gathering as a “halftime talk,” while Sen. Kevin Cramer said Trump was disappointed with Republicans who undermined him on Iran but less angry than expected.
President Trump delivered one heck of a halftime speech today.
It’s time for the @SenateGOP to wake up and smell the roses.
If we don’t pass the SAVE America Act, we might as well just pack up and go home. pic.twitter.com/BjEykVKEQo
— Coach Tommy Tuberville (@SenTuberville) June 24, 2026
Trump struck a more upbeat tone afterward.
“I think we had a really great meeting,” Trump said. “We’re very proud of the party. We like [Majority Leader John Thune]. We like everybody really in the room. I don’t like a few people, but that’s okay. I think you know who they are.”
The exchange carried added political significance because Cassidy’s Senate career is effectively over. Trump helped sink the senator’s reelection bid by backing Letlow in Louisiana’s Republican primary, and has repeatedly held Cassidy up as an example of a Republican who lost touch with the party’s voters.
The lunch also included discussion of Trump’s push to pass the SAVE America Act, which would require documentary proof of U.S. citizenship to register to vote. Trump recently scrapped plans to sign a bipartisan housing bill, insisting Congress first advance his election-integrity legislation. He also renewed calls to eliminate the Senate filibuster, though Republican leaders remain reluctant.
Texas Sen. John Cornyn, who also lost his primary to a Trump-backed challenger, noted the contrast in the meeting’s tone.
“The president closed by preaching unity,” Cornyn said. “But he spent the prior hour talking about things which were not exactly unifying.”
Later at the White House, Trump described the lunch simply as “colorful.”
The meeting reinforced a reality that has become increasingly clear in Trump’s second term: Republicans who publicly break with the president should expect to hear about it.
