President Donald Trump warned Iran's supreme leader that he should be 'very worried' as tensions rise between the United States and Iran. In an interview with NBC News, Trump emphasized the United States' support for Iranian protesters and claimed that American actions have weakened Iran's influence in the Middle East. Trump asserted that the United States had dismantled Iran's nuclear capabilities and warned of potential military strikes if Iran resumed its nuclear program. The full interview with Trump is set to air in segments over the coming days.