“Good luck Joe. Maybe it’s time to step down.”
Having Joe step down or taking him out by challenging his mental abilities will be extremely embarrassing to the party.
Also, there’s Jill. I suspect she will fight them and that too will be embarrassing. The easiest way out for them is to call Hillary and get her to have her team visit him. It will look like an accident and everybody comes out the winner. Jill will be elevated to sainthood and ushered off to be a university president at some ivy league school. Joe will be in death what he never was in life, a terrific leader and probably a saint as well. Jill will get lots of multimillion dollar book deals. The party will be spared embarrassment and Harris, like LBJ, will sell every lousy policy as doing what Joe wanted.