There’s a very good chance that if there is some sort of Blue Wave — which I refuse to believe is going to happen until a Democratic House (at least) is sworn in in January — that Trump will actively attempt to put doubt in his follower’s minds as to its legitimacy.
One reason why I think there isn’t going to be a Blue Wave is Trump dangled this idea out there for a day then dropped it just as suddenly as he introduced it. That leads me to believe his internal polling is showing things are fine for Republicans since the SCOTUS problem and he has nothing to worry about.
The end game to challenging the legitimacy of any possible Blue Wave is should he be impeached, Trump can scream bloody murder about how Congress has no right to do anything to him because of Chinese hacking. What’s more, in the extremely unlikely event that Trump is not only impeached but convicted, he will give himself every reason to simply ignore the Senate’s conviction. Or he’ll rally the MAGA base to come defend him at the White House.
Though one thing I think we’re underestimating: simply because you impeach a president, doesn’t mean you convict him. And given what a wily politician Trump is, I have ever reason to believe he’s going to be more Reagan and less Nixon in the sense the center of gravity for the American political system is lurching to the Right in a big way and there’s no going back. It’s going to be 20 to 30 years before the “browning of America” slowly begins to wear away at the damage Nixon — > Reagan — > Trump have done to the United States over the last 50 years.