The GOP is incapable of deciding anything.  The party has no leader, no elder statesmen with real influence, no clear majority faction and, now that Trump has blown the charade of "movement conservatism" to pieces, no ideology.  It's just a bunch of people locked in a closet yelling at one another to shut up and hold still.  Unfortunately, they also have gasoline and matches in there.  The rest of us, trying to live quietly in the rest of the house, are as much at risk as they are.

The party's one hope is Hillary Clinton.  Trump has proved that Hillary-hate really works at the ballot box.  Once he's gone from the scene (probable, but not certain), that hate is the only force that will hold Republicans together.  No more pretense about small government, family values, or dear old Ronnie Reagan.  Just lies, obstruction, litigation, and threats of "direct action."  People's minds don't matter, only their juices.