World leaders listened closely to his remarks at the U.N. General Assembly as Trump has already moved quickly to diminish U.S. support for the world body in his first eight months in office. Even in his first term, he was no fan of the flavor of multilateralism that the United Nations espouses. Trump escalated that criticism on Tuesday, saying it’s “empty words don’t solve wars.”Advertisement“What is the purpose of the United Nations?” Trump said. He’ll return to Washington after hosting a reception Tuesday night with more than 100 invited world leaders. Advertisement“It’s too bad that I had to do these things instead of the United Nations doing them,” Trump said.