The issue focused on U.S. policy in the region, with Trump vowing to get China to do more to stop North Korea's nuclear and missile programs.

"It is not about whether we have a better relationship with China or we don't," he said. "We are going to work very hard to make sure that they do not take over any of our South Korean areas. We will have them build up their own military so that they can keep out of any kind of conflict and go after