message. >> reporter: president will meet a fan of his in president duterte. he has had nothing but praise for the leader. they will discuss the ongoing war against drugs. will trump bring up human rights abuses raised by duterte's government? >> reporter: priority to south korea is north korea. moon has gone along with sanctions and pressure, but moon wants dialogue and desire in the past trump called apiecement. and trump called to renegotiate the deal with the two countries, but seoul doesn't want many changes. >> reporter: president trump's biggest schedule challenge in vietnam will be convincing leaders of the view of free trade. he will address the asia pacific economic summit saying he wants fair trade and balanced trade. the most watched event if it happens is a possible bilateral