Next week at the U.N., Trump plans to stay on message, touting his drive to protect U.S. sovereignty before world leaders, some of them worried about America's commitment to the multilateralism that has governed the United Nations since the end of World War Two.

"It is not saying multilateralism can't work. But it's saying sovereignty is a priority over all of that," U.S. Ambassador to the U.N. Nikki Haley said in describing Trump's address on Tuesday at the annual U.N. General Assembly.

Next week at the U.N., Trump plans to stay on message, touting his drive to protect U.S. sovereignty before world leaders, some of them worried about America's commitment to the multilateralism that has governed the United Nations since the end of World War Two.