GOP Hawks Break With Trump Over Iran Peace Framework, Demand Senate Ratification

The United States and Iran are in active negotiations toward a framework agreement that would end roughly three months of armed conflict, reopen the Strait of Hormuz, and initiate a separate 60-day window of talks on Iran's nuclear program. The agreement under discussion involves a 60-day ceasefire extension during which the Strait of Hormuz would be reopened, Iran would be able to freely sell oil, and negotiations would be held on curbing Iran's nuclear program. The draft memorandum of understanding includes commitments from Iran to never pursue nuclear weapons and to negotiate over a suspension of its uranium enrichment program and the removal of its stockpile of highly enriched uranium. Iran's state media disputed Trump's characterization of the proposed terms. Fars News said that Trump's claims about the strait reopening are "not true" and "inconsistent with reality," noting that Iran has agreed to allow vessel traffic to return to pre-war levels, but that this does not constitute free passage as it existed before the war.

The conflict began on Feb. 28, 2026, when the United States and Israel launched coordinated strikes against Iranian targets. President Trump referred to the campaign as "major combat operations," though the United States was not formally at war with Iran. Under Article I, Section 8, Clause 11 of the Constitution, only Congress has the authority to declare war. The current negotiations are the second major diplomatic track in 2026. Two sets of U.S.-Iran talks have been held in 2026, with the first predating the conflict. The 2026 conflict followed the failure of those earlier indirect talks, which themselves followed the October 2025 triggering of snapback sanctions against Iran under the 2015 nuclear deal by the United Kingdom, Germany, and France. Trump withdrew the United States from the Joint Comprehensive Plan of Action in his first term. Trump withdrew from the 2018 deal because he concluded that the JCPOA would only delay, not prevent, Iran's development of nuclear weapons. The withdrawal led Iran to take actions contrary to the deal, including stockpiling roughly 440 kilograms of highly enriched uranium.

Several senior Senate Republicans are now publicly urging Trump to abandon the emerging agreement and resume military operations. Senate Armed Services Committee Chairman Roger Wicker (R-Miss.) issued the sharpest rebuke. Wicker wrote on X that a rumored 60-day ceasefire with Iran "would be a disaster" and that "everything accomplished by Operation Epic Fury would be for naught," adding that Trump was "being ill advised to pursue a deal" and that the decision would "define President Trump's legacy." Wicker urged Trump to "allow America's skilled armed forces to finish the destruction of Iran's conventional military capabilities and reopen the strait," warning that further pursuit of an agreement risked "a perception of weakness." Sen. Lindsey Graham (R-S.C.), a close Trump ally, initially warned against a deal, saying a pact that left Iran capable of threatening Gulf oil infrastructure would be "a nightmare for Israel." Graham subsequently shifted, calling on Trump to tie any peace agreement to additional Middle Eastern nations joining the Abraham Accords framework, and urging the president to "stick to your guns in getting a good deal with Iran," according to POLITICO [POLITICO].

Sen. Thom Tillis (R-N.C.) raised a distinct constitutional concern. Tillis said "there are a lot of things that need to be explained," and argued that any agreement with Iran not submitted to Congress for ratification is "going to be doomed to fail, just like the agreement we're trying to replace, which was the failed agreement by Obama." That argument implicates the treaty power under Article II, Section 2 of the Constitution, which requires a two-thirds Senate vote for ratification, a threshold the JCPOA never cleared, having been structured instead as an executive agreement. Tillis questioned having a 60-day ceasefire in which terms of the nuclear deal would be subject to later negotiations, an argument also made by former Secretary of State Mike Pompeo, Wicker, and Graham. Tillis was sharply critical of Defense Secretary Pete Hegseth, saying he was told "about 11 weeks ago by Hegseth and Department of Defense that they had obliterated Iran's defenses and it was just a matter of time before we had the nuclear material," and questioned why the administration was now considering accepting nuclear material remaining in Iran.

The administration's calculus is not simply military. Polls show the war is unpopular with the American public and has cost U.S. taxpayers at least $29 billion as of this month; 13 service members have been killed during the operation. Iran's closure of the strait, through which about 20% of global energy supplies transit, has jolted the world economy and sent prices for gasoline and other goods climbing. Trump signaled he would not be rushed. On Saturday, Trump said the agreement had been "largely negotiated" and that the Strait of Hormuz would be reopened, writing on Truth Social that finalization remained between "the United States of America, the Islamic Republic of Iran, and the various other Countries." On Monday, Trump added on Truth Social that Iran's highly enriched uranium would either be transferred to the United States or destroyed under international oversight, according to POLITICO [POLITICO], a demand Tehran had previously refused. Iran's foreign ministry has stated that uranium "will under no circumstances be transferred anywhere."

Pakistan and Qatar have served as the principal mediating parties. Pakistan's army chief, a key negotiator, met with Iranian Foreign Minister Abbas Araghchi and other Iranian officials in Tehran to discuss "the latest diplomatic efforts and initiatives to prevent escalation of tensions and end the war." Regional leaders urged Trump during a call to accept the proposed framework, with a person briefed on the discussion describing the conversation as encouraging. Secretary of State Marco Rubio, speaking from New Delhi, pushed back on critics inside the GOP. Rubio told reporters that no president has been stronger against Iran than Trump and that Trump's "commitment to that principle that they'll never have a nuclear weapon shouldn't be questioned by anybody." The divergence within the Republican caucus places Senate hawks in a structurally difficult position: opposing a peace settlement as midterm elections approach, at a time when gas prices are rising, Trump's approval ratings are falling, and his support from congressional Republicans is weakening on Iran and other issues.