Energy chief says Iran nuclear deal unlikely; ceasefire expires as Hormuz strikes mount

Iran Peace Deal Analysis for September 7, 2026

The US Energy Secretary said Sunday that a nuclear agreement with Iran may not happen anytime soon. A senior Biden official made this statement publicly as a two-week ceasefire between Washington and Tehran expired over the weekend. No replacement talks are scheduled.

Iran claimed it struck a US ship in the Strait of Hormuz on Sunday. The US denied direct hits. Iran's parliament speaker Mohammad Bagher Ghalibaf announced that "the era of proportionate responses has come to an end." This means Iran intends to abandon measured retaliation and pursue costlier attacks. Iran also plans to announce a new exclusion zone near Hormuz to choke off shipping and raise costs for global oil markets. Trump said no talks are planned and hinted at unspecified military action in the strait.

The collapse is stark. In June, headlines trumpeted deal signings. In September, both sides made commitments. A 60-day ceasefire started in mid-July and expired August 17 with no progress on a permanent arrangement. Iran's president suggested in late August that a US memorandum offered a path forward. That overture vanished when Trump rejected further talks and announced a "crushing economic operation" against Tehran. Now both sides trade military moves with no diplomatic exit available.