This is the problem in a nutshell with Trumps America.
The President's team negotiates a deal that the congress will not ratify.
The President then opposes any changes the Dems want to make.
As I mentioned long ago - trying to negotiate long term agreements with America at this time is pointless. Their leadership is in complete disarray and who knows if it will ever get sorted out.
The best we can do is maintain our composure and our position and be polite.