This has happened before, they can "change residence", as Dick Cheney did with Bush. She could register to vote in DC.
But I agree that if she heads the ticket, she would need a VP from Michigan or something like that, probably not another female.
Nobody here seems to think Joe is of "sound mind", eh? Do we all think a President should have a "sound mind", preferentially, as one of the top criteria?
Integrity would be up there, for me, along with some experience in getting things done. These days, I care less about political leanings than those three things. Congress generally limits excesses. Remember the "public option" on Obamacare? Lieberman said no.