He also cast himself as the scourge of anything that smacks of multilateralism, including sustainable development, one of the organization’s stated goals. “Your countries are going to hell.” He accused the U.N. — without evidence — of financing waves of migrants to cross illegally into the United States. Ahead of his speech, a White House spokeswoman said that Trump would talk about “how globalist institutions have significantly decayed the world order,” but that proved to be an understatement. “It’s too bad that I had to do these things instead of the United Nations doing them, and sadly, in all cases, the United Nations did not even try to help in any of them. On Ukraine, he demanded that European countries stop buying gas and oil from Russia in order to bring the war to an end.