Mojtaba Khamenei: Trump's signature 'utterly worthless' as Iran tensions spike

Son of Supreme Leader delivers blistering rebuke

Mojtaba Khamenei, the son of Iran's Supreme Leader Ayatollah Ali Khamenei, has launched a sharp verbal attack on the United States. Speaking amid escalating hostilities, he declared that US President Donald Trump's signature is 'utterly worthless'. The remark was a direct reference to Washington's withdrawal from the 2015 nuclear deal, the Joint Comprehensive Plan of Action.

The younger Khamenei labelled America the 'Great Satan', a phrase frequently used by Iranian leadership since the 1979 Islamic Revolution. His comments signal a hardening of Tehran's position as a fresh crisis unfolds in the region.

Unforgettable lessons and broken promises

Mojtaba warned that Iran would teach the United States 'unforgettable lessons' if strikes on Iranian targets continue. The threat mirrors language used by his father, the Supreme Leader, who earlier accused Washington of showing that its commitments are devoid of credibility.

Iranian officials have repeatedly pointed to the US exit from the nuclear deal under Trump in 2018 as proof that America cannot be trusted. The reimposition of sanctions and the recent escalation of military action have deepened the rift.

Regional war fears mount

The war of words comes as tensions across West Asia reach a boiling point. Reports indicate that US airstrikes in the region have drawn direct threats from Tehran. The Supreme Leader has stated that Iran will respond with force to any aggression, raising fears of a wider conflict.

Both sides have mobilised assets in the Persian Gulf. The US has deployed additional naval forces, while Iran has conducted military drills near the Strait of Hormuz, a critical oil shipping lane.

No clarity on next steps

There has been no official reaction from the White House or the State Department to Mojtaba's statements. The Iranian leadership appears unified in its defiance, with the Supreme Leader backing his son's hardline stance.

International observers are watching for any diplomatic backchannel. European powers, who remain parties to the original nuclear deal, have called for restraint from both Washington and Tehran.

What to watch: Whether the rhetoric escalates into direct military confrontation or whether backchannel talks, possibly mediated by Oman or Qatar, can defuse the crisis. The next 48 hours will be critical.