United States President Donald Trump has issued a direct and menacing warning to Iran’s Supreme Leader Ayatollah Ali Khamenei, declaring the Iranian leader “should be very worried” as both nations move toward resuming nuclear negotiations. The blunt message came during Trump’s Wednesday interview with NBC News, signaling Washington’s increasingly aggressive posture toward Tehran. United States President Donald Trump has issued a direct and menacing warning to Iran’s Supreme Leader Ayatollah Ali Khamenei, declaring the Iranian leader “should be very worried” as both nations move toward resuming nuclear negotiations. The blunt message came during Trump’s Wednesday interview with NBC News, signaling Washington’s increasingly aggressive posture toward Tehran.