President Donald Trump on Sunday, 10th of May, 2026 rejected Iran’s formal response to the latest American diplomatic proposal aimed at resolving the ongoing conflict, declaring the counteroffer “unacceptable” and warning that the United States would not soften its position.
The White House confirmed that Iranian officials had submitted their reply through back-channel intermediaries over the weekend, but senior administration officials said the response fell far short of the conditions Washington had laid out as prerequisites for any lasting agreement.
Trump, speaking to reporters at the White House, said the US would maintain its current stance and hinted that additional pressure measures could follow if Iran failed to engage more constructively.
The rejection marks yet another setback in what has been a prolonged and deeply complicated diplomatic process, with both sides trading proposals and counterproposals over several months without reaching common ground.
Key sticking points reportedly include Iran’s demands for immediate sanctions relief and security guarantees, conditions the Trump administration has been unwilling to meet without verifiable concessions from Tehran first.
Analysts say the widening gap between the two sides’ positions raises serious questions about whether a negotiated resolution remains achievable in the near term.
Despite the latest impasse, US envoys indicated that diplomatic channels remain open and that Washington has not entirely ruled out further rounds of talks.
Allies in the region, including several Gulf states and European partners, have urged both sides to exercise restraint and return to the negotiating table. Iranian state media, meanwhile, accused the Trump administration of acting in bad faith, signaling that Tehran may be in no rush to revise or moderate its position in the days ahead.
