President Donald Trump’s preliminary agreement with Iran is facing mounting scrutiny in Washington, as lawmakers from both parties demand to see the full terms before the United States moves towards any final deal.
Trump, who is attending the 2026 G7 summit in Évian-les-Bains, France, said on Tuesday that he was open to sending the memorandum of understanding to Congress. The document was announced and signed digitally on Sunday, but has not been released publicly.
The framework is expected to extend the U.S.-Iran ceasefire for 60 days while both sides pursue wider talks on Tehran’s nuclear programme, regional security concerns, and the reopening of the Strait of Hormuz.
“What I would like to do is send it to Congress and say ‘you shouldn’t approve it.’ And they will approve it,” Trump said, apparently joking, as he arrived for a meeting with United Arab Emirates President Mohammed bin Zayed Al Nahyan.
The White House has presented the agreement as a possible path out of a conflict that began in February and disrupted one of the world’s most important energy routes. The Strait of Hormuz had been effectively shut during the fighting, raising concerns over oil supplies, shipping costs, and fuel prices.
On Capitol Hill, however, senior figures said they were still waiting for answers. Senate Majority Leader John Thune, R-S.D., said he had not yet received a full briefing, while Senate Minority Leader Chuck Schumer, D-N.Y., called for more details to be shared with Congress and the public.
“Americans need to know what Trump has promised to Iran and what the United States will get out of it,” Schumer said.
The deal has also drawn caution from some Republicans close to Trump. Sen. Lindsey Graham, R-S.C., said he welcomed any move that could reopen the strait, but warned that Iran and the U.S. appeared to be presenting the arrangement differently. He said any nuclear-related agreement should go to Congress for review and a vote.
Trump, asked about Graham’s concerns, replied, “I have to talk to Lindsey. He will be in big trouble.”
Vice-President JD Vance has said the main points are reopening the Strait of Hormuz and securing Iran’s commitment not to develop nuclear weapons, although many details remain unsettled. An official signing ceremony is expected in Geneva on Friday.