It looks like a real possibility that there may be a 'Conservative Party' insurgency that will split the Republican voting and ensure Trump's defeat.
Hillary Clinton is a to the right-of-the-middle Democrat and might be seen by the Republicans in Congress as a more palatable administration to work with rather that an obstinate President Trump. Sort of a reverse deadlock ...
Without the political support of your party you don't get jack-shit done. Ronald Regan was an outsider to federal politics but Ronald Regan was a two term governor of the state of California -- California's economy is the 8th largest in the world -- so Regan did have 'hands on' political experience.
"It ain't over till it's over."
Yogi Berra