Republicans may have to worry abotu Trump being thneir candidate once again, but I don't think, as long as democrats turn out to vote in the general election, that we have to worry about Trump even coming close to winning. Enthusiasm for Trump is waning...
One thing is certain. If Trump does not die and is also not elected in 2024 he will be there again to claim the election was stolen from him. Face it. He has a big ego and also big bills that need payments now.
I hear on one news report that Trump thinks if he can win, he will be able to pardon himself. When he doesn't win in 2024, I think he will have so many legal troubles that most won't take him as seriously as they might have in the past.