The Senate voted on Wednesday night to block a Democratic-led war powers resolution seeking to end military operations against Iran, after a heated meeting between President Donald Trump and Senate Republicans where he berated a handful of lawmakers over their votes in favor of a successful war powers resolution the previous day.

Sens. Bill Cassidy (R-LA) and Rand Paul (R-KY), supporters of previous war powers efforts, changed their votes on the resolution on Wednesday, which had previously passed a procedural hurdle — Cassidy now voting no and Paul voting present. Sens. Susan Collins (R-ME) and Lisa Murkowski (R-AK) again voted yes, while Sen. John Fetterman (D-PA) voted no. The final vote was 50-47.

Cassidy, who engaged in a shouting match with Trump in the meeting over his recent war powers votes, told reporters after the meeting that he would not change his vote until he had been briefed on the war. Hours later, Cassidy received a private briefing on the war from Vice President JD Vance and White House Special Envoy Steve Witkoff.

“I am reassured. I had my briefing. My criteria is met,” Cassidy said. “As long as I’m reassured that there’s honesty and that, as they’re depicting events, it’s playing out appropriately, I’m reassured. But again, you want to trust but verify.”

Cassidy had said earlier in the day that he did not believe the administration’s prosecution of the war was on track to achieve the goals it laid out. Following that conversation, Cassidy changed his tune.

“I think it’s plausible that they are achieving the objectives, as they laid it out,” Cassidy told Jewish Insider. He added that he wants to “see events transpire the way they depict them, but they had plausible explanations for how they’re achieving those objectives.”

Cassidy said he had passed a note to Witkoff, who attended the Senate meeting with Trump, asking him for a briefing, and the White House had called within the hour to set it up.

The Louisiana senator has emerged as a key swing vote since losing his primary to Trump-backed Rep. Julia Letlow (R-LA).

Paul, the earliest GOP vote in favor of war powers efforts, said his present vote came in deference to the administration’s negotiating strategy.

“My opinion on the debate over war and executive power has not changed and I have voted that way several times. But since hostilities seem to be over and the president asked me to give consideration to his negotiating position, I will do so,” Paul said. “My vote of present is a way to give the president more space and leverage to negotiate a lasting peace.”