“Why on earth would the Democrats want to do that? “
Because Obamacare was their crowning achievement after a century of “struggle”. And Republicans are unable to act on anything, in either direction.
Democrats cannot count on Republicans to fix what will become a completely collapsed healthcare delivery system. Republicans are always content to do nothing.
But Trump has the ability to at least make Republicans vote. And he wants that wall. And Dims want an Obamacare fix. And Republicans just want to be left alone.
Ergo, the natural makings of a deal.
You're kidding, right? Give up the chance to run in 2020 on the fact that Republicans ended pre-existing coverage and caps on insurance coverage and stripped insurance from millions of people? You think they're that stupid?