I think that the Dems are going to push Robert Kennedy Jr. and they will automatically get rid of Biden and the Kamala problem as everybody calls her.
RFK Jr is the least option on the list. I think they’d planned to go onto Governor Newsom of California, and realize now (six months after planning this), that Newsom is unwinnable.
The problem I see...there’s a ‘bounce’ that Senators, House members and Governors would get in a typical Presidential election cycle. If you are depending upon that normal bounce, with Biden/Harris as the ‘brand-name’, you are screwed presently.
I’d also say, as his condition deteriorates, you are simply waiting for the day that he turns in some public situation and he announces that he pooped in his pants. At that point, the gimmick is finished and you can’t continue the act anymore.