IMHO it’s also lights out for the Republican Party
I disagree. Most Americans don’t understand that the Democrats need the GOP. That is, the GOP of Paul Ryan, John Kasich, Ted Cruz, Jeb Bush, Mitt Romney, et al. They are the Washington Generals of politics. The team of hapless stooges the Harlem Globetrotters “competes” against in their basketball-court-theater victories.
Trump is like a young Michael Jordan who forces his way onto the Washington Generals roster, somehow becomes team captain, and wants to make the team a winner. And the power brokers are pissed because they are making a lot of money off the naïve GOP rank and file, who have put bet after bet on the Washington Generals.