At a rare moment of "resurrection", Republican senators appeared angry with the protocol signed by President Donald Trump with Iran, which they consider to be beneficial to Tehran and is far from the " crushing victory" promised to them by the White House.

The agreement ends the war that began on 28 February with the US-Israeli attack on Iran, reopens the Straits of Hormuz and stabilizes fuel prices, which had been launched in recent months.

However, the terms described in this Memorandum of Understanding worry some Republicans, who had considered the nuclear agreement reached by Barack Obama's government with Iran in 2015 and from which Trump then left, considering it inadequate.

Republicans in Uproar Over Trump’s Deal With Iran: “Total Survey” https://t.co/SbW36dZeet— The New Republic (@newrepublic) June 18, 2026

This time, the prospect of the relaxation of sanctions against Tehran and the creation of a reconstruction fund, amounting to hundreds of billion dollars, raises concerns, given that Americans have not made any explicit commitment to enriching uranium or supporting Iran to its armed allies in the wider region (Huthi, Hezbollah).

And, although navigation will resume, without toll, in the Straits of Hormuz, Iran could apply "rights of exploitation" for the services it will provide to ships after 60 days.

"The Worst Fiasco"
Republican Senator Bill Cassidy described the deal as "the worst fiasco of foreign policy for decades".

"Before the war, the Straits were open, Iran had been crushed by sanctions and our 13 soldiers were still alive. Today, 13 Americans are dead, families spent billions on pumps, sanctions will be lifted and bombings stopped," he wrote on the platform H the senator from Louisiana, referring to the 13 American soldiers killed in this war.

Trump repudiated criticism, presenting this memorandum as the only means to reopen Hormuz, from where he spent one fifth of world oil before the war. "These idiots, who think I wasn't tough enough with Iran, while the Stock Exchange reached a historical record and the price of oil falls, are jealous, are dishonest, are stupid," he wrote on his platform, Truth Social, today.

‘Fault’
Also Republican Ted Cruz called on Trump "not to give cash mountains" to Iranians who would allow them to rebuild the country and "to become a threat to the US again", referring to the plan to create a $300 billion fund for Iran's "economic development".

"I don't want to see the Islamists who want to kill us grow strong. If this deal gives them $300 billion, it's wrong," he said on his podcast.

As for John Cornin, a Texas senator, he fears that the deal will only be a "intermedium" that will allow Iran to reconstruct its arsenal and continue enrichment of uranium.

The head of majority Republicans in the Senate John Thun appeared more restrained, but said he needed answers to many questions, especially if the agreement concerns Iran's nuclear programme, its ballistic missiles and its support for its regional allies.

Other Trump allies asked his critics for "waiting". As for Democrats, who all condemned the deal, they say the Republican president started a costly war to finally accept a text that strengthens Tehran.