President Donald Trump on Sunday rejected Iran's latest response to a U.S.-proposed ceasefire and peace framework, declaring the offer "totally unacceptable" and signaling that diplomatic talks have reached an impasse. The White House has not yet detailed what specific terms Iran put forward, but Trump's public dismissal indicates a sharp divergence between the two sides' positions.

Trump's remarks came amid a broader U.S. effort to negotiate a deal that would address Iran's nuclear program and regional military activity. The administration had been engaged in a series of indirect and direct diplomatic contacts with Iranian officials, and the rejection suggests those efforts have stalled significantly. Trump warned that Iran would no longer be "laughing," indicating potential escalation if talks do not resume on terms more favorable to Washington.

The breakdown comes against a backdrop of heightened tensions involving Iran, Israel, and broader Middle East security concerns. The U.S. proposal was understood to include provisions related to Iran's nuclear enrichment activities and its support for regional proxy forces. Iran's counter-response was apparently deemed insufficient to address core American and Israeli security demands.

No immediate follow-up negotiations have been publicly announced. Administration officials have not ruled out continued diplomacy, but Trump's unambiguous language raises questions about the near-term prospects for a negotiated resolution. The situation remains fluid, with both military and diplomatic options reportedly under active review by the administration.