Hostile Rhetoric Escalates Between the US and Iran

U.S. President Donald Trump has sharply warned Iranian President Hassan Rouhani to "never threaten the United States," or the Islamic Republic would suffer historic consequences. Iran appeared to dismiss the threat, accusing Trump of "psychological warfare" to appeal to his base of voters ahead of the November elections. VOA's Diplomatic Correspondent Cindy Saine reports from Washington on the escalating rhetoric.