Well, I, for one, was always a Bernie guy. I didn't want Hillary in 08 even though she probably would have won, and I didn't want her in 16. I did assume she would win in 16 simply because I didn't want to believe that half of America was willing to elect a completely unqualified, hateful fool just out of spite.
Now? I wouldn't be upset if Biden decided to step down... if Trump died tomorrow I would probably start insisting he did, but as things stand I think he will beat Trump again and it's pretty important that he do so.