The Odds that Senator Harris Is Already Reviewing a VP List?

I'd give it 50-50 odds.

As Joe steps aside, either in the weeks to come, or after the election 'win'....Harris probably has a list made up already of individuals for her VP choice, and for the cabinet itself. 

I wouldn't even see a problem in admitting such a list exists. 

Would the new VP have to be a white male?  Yes, some idiot probably has already made up the rules list, and it has to be a white male over the age of sixty (figure NY Governor Andrew Cuomo).