Does Trump already have a deal with China? [View all]

Basics of Diplomacy 101 is that a President doesn't go to another country unless there is already a deal in place. If not, the President can look foolish and ineffective.
Of course Trump thinks he is a master at the deal and there aren't any left in the State Dept that understand how things work. At least not anyone he would listen to.
I predict that Trump will return without any real results, or announces something the Press will make a big thing of that will turn out to be a nothing burger or bad for America.