Biden is a front.
He is perceived (in polls, focus groups) as a middle of the road guy compared to Harris, Bernie, Warren, Booker, and the others so he is the nominee.
There is no way he will debate.
If elected, he wil have NO say in policy, he will just be a figurehead and make short scripted speeches for appearance sake.
I have said before that the VP will then take over in <6 months, but maybe not if they can keep him in place effectively.
BUT Trump will definitely go after the VP nominee, say that she will take over as President, do you want HER to lead this fine nation?
Harris (+110)? Hillary? Rice? Duckworth?