Actually I think Trump is holding all the cards - for now.
None of the world leaders with the possible exception of Bibi have a clue as to how he's going to act and react.
I think if he states a position, sticks to it (big IF there), and negotiates as rigorously as he's said he will, he should earn some respect on the world stage.
They've got to be shaking their heads right now not knowing what he's going to do.
Only he really knows, and he might wing it.
I'm going to sit back and watch the Alpha male perform.