President Donald Trump continues to catch heat from Republicans who lost their reelection bids as part of his personal revenge tour, with The Hill reporting on comments from one such lawmaker slamming his Iran deal as a "tremendous foreign policy blunder."Sen. Bill Cassidy, a Louisiana Republican, recently lost the GOP primary for his reelection campaign, as part of the all-important 2026 midterms, to a Trump-endorsed challenger. The president has endorsed numerous challengers against Republicans, like Cassidy, whom he deemed to be insufficiently loyal. While Cassidy caught considerable flak from the anti-Trump crowd for supporting some of his most controversial Cabinet nominees, he remained on Trump's hit list after voting to convict him after his second impeachment in 2021.Now, Cassidy is among the scorned Republicans feeling free to hit back at the president with the few months left in the term. As The Hill reported on Wednesday, the senator tore into Trump's controversial new peace deal with Iran, calling the information revealed about it so far "awful.""The details that I’ve seen so far look … awful," Cassidy told reporters. "This will go down as a tremendous foreign policy blunder."Several Republicans have been outspoken in their distaste for several supposed aspects of the deal, which aims to reopen the Strait of Hormuz and end hostilities for 60 days while a more final agreement is negotiated. The alleged terms calling for all sanctions on Iran to be lifted, and for it to receive at least $300 billion to help rebuild from the conflict, have been ripped apart by numerous conservatives, even staunch MAGA allies like Sen. Lindsey Graham."The reported MOU calls for fighting to end on 'all fronts,' including with respect to the Israeli campaign against Hezbollah in Lebanon, and the reopening of the Strait of Hormuz within 30 days," The Hill detailed. "It also says the U.S. and regional partners will finance at least $300 billion for a reconstruction fund for Iran. Trump, though, said Wednesday the U.S. will not contribute to the fund. Under the reported agreement, the U.S. would also end all sanctions on Iran, including on Iranian oil exports, while Tehran would commit to not producing nuclear weapons. The deal does not bar Iran from enriching uranium, however."Cassidy said these terms, if they are accurate, would leave Iran in a stronger position than it was before the war, and leave allies in the Middle East weaker, and demanded answers for Congress.“It’s clear that they don’t have a plan. Or if this is the plan, it’s not a very good plan, and that’s because it’s now been five months,” Cassidy added. “So that’s why I think Congress needs the ability to be fully briefed and to weigh in. Not to be told kind of top line what’s going on, but to be fully briefed. And that’s my… goal right now. Let the American people, by their elected representatives, have input into what we’re doing, because it’s not going as we were promised that it would go.”