Ok..thanks... I don't agree with your alternate choices but I do agree with you about Biden... and even he's given up on Kamala...Bernie and Liz are getting up there in age, but AOC will be just barely old enough to run.
For the time being, unless another good Social Democrat emerges from the boring moderate herd,
the little Latina broad becomes my first choice.
No indication that she would even run, however.
I doubt if Biden will be seriously primaried [if that's an actual word] if he wants to run again.