Republicans blast U.S.-Iran deal as JD Vance takes heat

Republicans blame – Republicans are sharply criticizing an interim U.S.-Iran memorandum of understanding that would lift sanctions and allow Iran to reopen the Strait of Hormuz, with multiple lawmakers calling it a surrender and arguing the administration is giving away too much.

For many Republicans, the argument isn’t about whether the United States should negotiate with Iran—it’s about what the interim deal gives away, and who in the administration is responsible for it.

Sen. Bill Cassidy of Louisiana opened the backlash on Wednesday with a blunt post on X. “This is the worst foreign policy blunder in decades. ” he wrote. adding that “Iran’s nuclear ambitions were not curbed. and they have learned that threatening the Strait of Hormuz works.” Cassidy also said. “Now. Iran gets to build brand-new infrastructure under this deal.”.

That anger has landed on the practical question Republicans say they can’t ignore: how much money the United States is providing. and how soon it comes. Sen. Thom Tillis of North Carolina has balked at the scale of resources the U.S. is giving to Iran, including sourcing at least $300 billion to fund reconstruction in Iran. The Trump administration has said repeatedly this week that the money would come from other Gulf countries.

The interim framework itself is set to become official. The Trump administration read the agreement to journalists on Wednesday. and both countries are expected to sign it in a formal ceremony on Friday. The deal, described as a “memorandum of understanding,” is extremely vague about how it will be carried out. It nonetheless contains major concessions to Iran tied to reopening the Strait of Hormuz and reaffirming it will not develop nuclear weapons: it would immediately allow Iran to sell its oil and terminate all sanctions against Iran. among others.

That combination—sanctions relief paired with the reopening of one of the world’s most important waterways—has Republicans arguing that pressure on Iran is being replaced by access and leverage for Tehran.

Trump, for his part, has appeared to recognize the growing unease inside his own party. He told reporters that the deal is not “final. ” that he may resume bombing if Iran doesn’t “behave. ” and that Vice President JD Vance—and definitely not the president—is responsible for the negotiated arrangement.

Cassidy’s view that Iran is gaining leverage rather than losing it echoes other conservative critiques. Ted Cruz told the Daily Wire on Wednesday. “The president is getting. I think. very poor advice when it comes to this deal. ” adding: “History teaches that giving billions of dollars to theocratic lunatics who want to murder us is a bad idea.”.

Ben Shapiro. speaking on Fox News on Wednesday. called the agreement “a disaster” and said it “does not achieve any of the signal goals that were set by the administration at the beginning.” Those goals. he said. included ending all nuclear enrichment. ballistic missiles. and support of terrorism. He concluded. “In my opinion. the Vice President of the United States. the chief negotiator on this particular project. has not well served the president.”.

Even Republicans close to the administration have raised doubts about how the deal is being understood on both sides. Sen. Lindsey Graham. a longtime loyalist. wrote on X shortly after the deal was announced on Sunday that he was “somewhat concerned that Iran’s view of the agreement seems different than what the American negotiating team is claiming.” Graham did not spell out specific worries. but on Wednesday he said it was worth waiting to see whether Iran would follow through on its word. He tied the agreement to the possibility of advancing his and Trump’s “ultimate goal” of normalizing relations between Israel and several Arab countries.

The administration’s steps on the military side have also fueled questions about how fast Washington is shifting. On Thursday afternoon, the U.S. military announced it had officially lifted its blockade on ships entering and exiting Iranian ports. The Trump administration said the blockade began in April and was designed to stop Iran from profiting off its closure of the Strait of Hormuz. while putting further pressure on Tehran to reopen the passageway.

Through all of it. the question of who bears responsibility—Trump or the people negotiating in his name—has become the thread Republicans are pulling on. JD Vance has publicly taken the opposite approach from the critics who are framing him as the deal’s weak link. Speaking at a White House press conference on Thursday. Vance told critics to “number one. have a little bit of faith in the president.”.

Trump himself used a different tactic: he pushed back on opposition by attacking the critics rather than the substance. writing on Truth Social on Thursday that opponents are “fools” because the Stock Market just hit a record high and because oil prices are “tumbling” down. The administration’s argument is that financial markets and energy prices are moving in a way that signals confidence.

Still, the backlash isn’t only about politics. A separate measure of what Americans pay for energy remains a sore point inside the debate. The average oil price in the U.S. is still 34 percent more expensive than when the U.S. and Israel started bombing Iran again in February, even as Trump pointed to movement in broader price trends.

The political moment is also volatile. Cassidy lost last month’s primary election to two Republicans, including Trump’s choice, Julia Letlow. Even so. the criticism from the party’s ranks has continued. and Trump’s response—separating the president from the deal while insisting it is not final—has only sharpened the idea that a negotiated settlement can quickly become a domestic fight.

In the immediate future. the stakes hinge on timing: Friday’s formal signing. Thursday’s military shift lifting the blockade. and the administration’s own warning that it may resume bombing if Iran does not “behave.” For Republicans already calling the arrangement an unacceptable bargain. the debate is no longer abstract. It’s about whether the next sequence of actions will confirm their fears—or force them to explain why their own party’s warnings came too late.

U.S.-Iran deal interim memorandum of understanding Strait of Hormuz sanctions JD Vance Bill Cassidy Thom Tillis Ted Cruz Ben Shapiro Lindsey Graham blockade lifted Trump administration