I think we are going to see more of what we have witnessed over the last couple months: There will be lots of posturing, and Trump will not put up with any BS. I will be shocked if Trump doesn't walk out at some point. Keep in mind, it is his hardball and willingness to walk away that has gotten us to this point. Remember this winter when he threatened, and everyone said he just doomed us to nuclear war when he said he had a button that worked on his desk? What happened quickly?
This is step one in a looooooooooooong process, but we have a President in office that many are afraid is strong enough to stand up to their little threats.