Sort of a dumb post considering we're still 3.5 yrs from presidential election. Plenty of candidates will emerge, and some of them will be solid. Personally, I've liked Buttegieg, but a lot of moderate bigots won't vote for him simply because he's homosexual.
Two things I can almost guarantee, and it is very bad news for the wingers. 1) We'll have a Democrat in white house in 2028, unless the wingers can drastically escalate their voter suppression tactics. 2) He/she will be a lot nastier than Biden or Obama were. Maybe just as nasty, radical and polarizing as Trump. Get ready; it's going to be a wild ride.