@foxnews: NEW: Mike Waltz says a Cuban official who allegedly attacked one of his staffers during a confrontation at the UN is getting a one-way trip back to Cuba. The U.S. ambassador says the trouble started when Cuban diplomats tried to pressure a UN clerk into shutting off his microphone as he spoke against the regime. But things escalated off-camera. Waltz says a staffer filming the confrontation was pushed and slapped, with a Cuban official knocking the phone out of his hand. Now, Waltz says Secretary of State Marco #Rubio has ordered the official sent back to #Cuba .