Democrats are so demoralized I bet this fall even their most loyal voters, dead people, don’t bother to vote. At least not in the numbers they usually do.
Not a bet I'd take, there's nothing more dangerous than a person (or political party ....) that's been backed into a corner on the verge of defeat. Think about it: There's nothing they wouldn't do to try and stay in power the next election.
The political pendulum in this country swings both ways: when voters see one party in power that's too big for their britches, they tend to 'even things out' by voting the other party in power. We saw that in 1994 and again in 2006. It is rare in the political history of this country though, to see the swing in the other direction happen so quickly ....