Senate Republicans Reeling From Trump's Iran Deal: '$300 Billion Fund Would Make Obama's Agreement Look Like a Pittance'

A deepening revolt is taking shape inside the Senate Republican Conference over President Donald Trump's memorandum of understanding with Iran, with senior lawmakers from across the party warning that the agreement hands Tehran a financial windfall that dwarfs anything negotiated by the Obama administration — and does almost nothing to constrain the Iranian nuclear and missile programs the United States just spent more than 100 days bombing.

The pushback, which began as guarded skepticism when the deal was announced Wednesday, has hardened into open defiance among some of the Senate's most powerful Republicans. Behind closed doors, the mood has been darker still.

"It was a somber mood, people are a little shell-shocked," one Republican senator, granted anonymity to speak candidly about the internal dynamics, told The Hill. "All the money in this deal for Iran is going to be a real problem."

Another Republican senator described "a high level of dismay" in the conference and expressed doubt that a final agreement with Tehran would ever actually be reached. "I think it's unlikely that an agreement will be reached and signed," the senator said.

At the center of the criticism is the deal's proposed $300 billion reconstruction fund for Iran — a figure that has unified hawks, skeptics, and even some of Trump's most reliable Senate allies in alarm.

Sen. Roger Wicker of Mississippi, the chairman of the Senate Armed Services Committee and one of the most senior Republican voices on national security, issued a blistering statement Thursday, calling the memorandum "completely out of step with the president's goals." He said the reconstruction fund would make Iran's payoff under President Barack Obama's 2015 nuclear agreement "look like a pittance by comparison."

"The Iranian regime has not renounced its ultimate goal — death to America, death to Israel," Wicker said. "The regime will invest every penny it receives to further that aim."

The criticism cut across ideological lines and personal relationships with the White House in ways that underscored just how broadly unease with the deal has spread.

Sen. Ted Cruz of Texas, among Trump's closest Senate allies, told reporters Thursday that he believed the president was receiving "some really bad advice on this deal." "History demonstrates that giving billions of dollars to theocratic lunatics who want to murder us is an exceptionally bad idea," Cruz said. "I don't want to see us send a penny to the ayatollah, and I hope that we don't."

Sen. Bill Cassidy of Louisiana was the most unsparing, posting on social media that the agreement amounted to "the worst foreign policy blunder in decades." "Iran's nuclear ambitions were not curbed, and they have learned that threatening the Strait of Hormuz works and will undoubtedly leverage it in the future," Cassidy wrote. "Now, Iran gets to build brand-new infrastructure under this deal."

The technical details senators cited only deepened the skepticism. The agreement would guarantee toll-free passage through the Strait of Hormuz for only 60 days, after which Iran would negotiate with Oman over the future administration of the waterway. The deal does not prohibit Iran from enriching uranium, does not address its missile arsenal, and does not clearly bar Tehran from funding militant proxies across the Middle East.

Sen. Tom Cotton of Arkansas, chairman of the Senate Intelligence Committee and a member of the Armed Services Committee, credited Trump with weakening Iran militarily but said he was concerned that "certain aspects of this deal are a step in the wrong direction." He warned that lifting oil sanctions would deliver Iran "somewhere between $150 and $200 million per day."

Sen. John Cornyn of Texas said Israel appeared to have been "left out" of the deal, which calls for a permanent end to military operations in Lebanon. "I would encourage them to continue to take the fight to Hezbollah," Cornyn said, "because, unfortunately, now Iran is going to have hundreds of millions of dollars to support its terrorist proxies."

The deal's military balance sheet made the concessions harder still to absorb. A classified CIA assessment estimated that Iran retained approximately 70 percent of its prewar missile stockpile and 75 percent of its mobile missile launchers, even after weeks of sustained American and Israeli bombardment.

Senate Majority Leader John Thune, who had said earlier this week he was still "digesting" the details, offered only a cautious endorsement, calling the agreement "a step in the right direction" while signaling that implementation questions remained unresolved. Sen. Thom Tillis of North Carolina, who is not seeking reelection, said he was hoping for considerably more information than the 14-point framework that had been released publicly, calling it "inadequate." "If I'm ultimately asked by the administration to judge it on the basis of the 14 points that we know," Tillis said, "then it will not be a good assessment."

The administration scrambled to contain the damage. White House officials worked throughout the week to reassure GOP senators privately, and the decision by Sen. Lindsey Graham of South Carolina to offer cautious support, following a briefing with Middle East envoy Steve Witkoff, was viewed internally as a significant win. Graham acknowledged that some of the criticism of the memorandum was valid but argued that without it, "there's no pathway to diplomacy to end the nuclear ambitions of Iran. What does that leave you with? War, or continuation of the status quo."

Trump himself had far less patience for the dissent. Writing on Truth Social early Thursday as he returned from the G7 summit, the president lashed out at opponents of the deal. "These fools, who think I haven't been tough enough on Iran, when the Stock Market Just Hit A RECORD HIGH, and Oil prices are 'tumbling' down, are either jealous, bad people, or stupid," Trump wrote.

The broadside did little to quiet the unease on Capitol Hill. For many of the senators now speaking out, the arithmetic of the deal remains impossible to reconcile — a conflict that cost 13 American lives and more than $100 billion, ending with Iran's nuclear program intact, its missile stockpile largely preserved, and a $300 billion reconstruction check on the table.

The question now, several senators said privately, is whether any of that changes once final negotiations actually begin — or whether the memorandum is the ceiling, not the floor.