I do wonder how you make a deal with those who are not open to one. You even have your own side caving (in Trump's circumstance). What is he really to do in the end (if it gets shut down again) and how do you make an actual deal? Difficult situation.
I've got an idea
He could get MEXICO TO PAY FOR HIS WALL
that's what he said over and over and over and over and over and over again
He couldn't get that done so he decided to take eight hundred thousand federal workers hostage in order to extort money from US Tax payers
Why would he expect a co-equal branch of government to negotiate with him under those circumstances
And as Lurker pointed out, he had two years to with his party controlling the House and Senate. Why didn't he make an effort to get his wall funding from his own party and why didn't he shut down the government when they wouldn't provide it.