By "hard-core" I mean the idiots who will always believe that he can do no wrong.
The thing is, not all of the people who are currently behind Trump are those hard-core supporters. I see stories about people regretting voting for Trump, but they're anecdotal: so far I haven't seen any estimates of the number of the people who voted for Trump, out of the 3 million less than voted for Hillary, who already regret it.
However, I have seen reports that approval ratings for Trump have already fallen into the 30's. That's low. For a President-elect who hasn't taken office yet, I'm pretty sure it's unprecedented. The hard-core supporters make a lot of noise and grab a lot of attention, but they're not the whole story. In the country as a whole people seem to be backing away from him. How about the fact that just about all of Trump's nominees for Cabinet positions seem to contradict him on some major policy position or another? Not just Congress, not just Congressional Republicans, but his own Cabinet nominees.
Paul Krugman has already mournfully declared that American democracy is over with, that it has ended because Trump has successfully pulled off a totalitarian coup-d'etat. Well, as I've often said on this blog: screw Paul Krugman! The President-elect looks weak to me, and I just can't imagine any way that his hold on power won't get very rapidly weaker as soon as he takes office and starts officially screwing up. The Breitbart crowd will continue to adore him no matter what he does or says, but they're not a majority of Republicans, let alone a majority of the country. For everybody else he will become more unbearable by the day.
And that will be that: impeachment, ejection from office, bring in the next right-wing asshole, Mike Pence, and we'll deal with him for the better part of 4 years.
Assuming Trump doesn't actually resign before his inauguration, because of this or that Russian entanglement, or because somebody finally leaks that "Apprentice" video which is, we're assured, far worse than the "Access Hollywood" clip, or because one of the many other time-bombs all around Trump suddenly goes off.
Approval ratings in the 30's before inauguration. Cheer up, my fellow Democrats.