WASHINGTON — Republican lawmakers and conservative allies of President Donald Trump have voiced growing criticism of the administration’s preliminary agreement with Iran, raising concerns about sanctions relief, enforcement provisions and the lack of detailed briefings to Congress as the White House moves forward with negotiations.
The criticism intensified this week after additional details emerged about a memorandum of understanding signed by U.S. and Iranian representatives to establish a framework for ending hostilities and opening broader negotiations over Iran’s nuclear program and regional issues. According to administration officials, the agreement includes a 60-day negotiation period and outlines steps tied to nuclear compliance, sanctions relief and the reopening of the Strait of Hormuz.
Several Republican senators said they had not received comprehensive briefings on the agreement and urged the administration to release the full text. Senate Majority Leader John Thune told reporters earlier this week that lawmakers needed more information before evaluating the proposal. “I just don’t know enough about it,” Thune said, according to media reports from Capitol Hill.
Sen. Lindsey Graham, a longtime advocate of a tougher policy toward Tehran, also expressed reservations and called for congressional review of the agreement. “The way Iran describes it, it’s awful. The way we describe it, it makes sense to me. Let’s look at it and see what it actually is,” Graham said.
Other Republicans criticized reported provisions involving sanctions relief and a proposed reconstruction investment fund for Iran. Sen. Roger Wicker, chairman of the Senate Armed Services Committee, warned that any arrangement perceived as strengthening Tehran would face scrutiny from lawmakers. Conservative commentators and several former Trump administration officials also questioned whether the framework would adequately limit Iran’s nuclear activities.
The White House and senior administration officials defended the agreement, describing it as a preliminary framework rather than a final accord. Vice President JD Vance said many specifics would be negotiated during a subsequent technical phase and emphasized that international inspectors would be involved in verifying Iranian compliance. Administration officials have also argued that Iran would gain access to certain benefits only after meeting specified conditions.
The debate has exposed divisions within the Republican Party. Some lawmakers and Trump allies have cautiously supported diplomacy as an alternative to prolonged conflict, while others have argued that the administration should seek stronger concessions from Tehran.
As of Friday, administration officials had not released the full text of the memorandum. Congressional leaders from both parties continued to seek briefings, while negotiators prepared for further talks intended to transform the framework into a more comprehensive agreement.
