Congressional Democrats will never agree to support Trump’s agenda.
That's a lovely strawman you've got there. Carry him out much?
They'll bend some on some issues...Obamacare; Trump didn't realize the GOP had no inkling of a replacement plan...And then he found out they lied and never had any intention of replacing Obamacare...
So Trump will get nothing of what he wants on healthcare unless he deals with the Democrats and gets some of what he wants...
While the Republicans are the majority, it's the liberals that control Congress...