No president is interested in having to compete with a high profile VP who doesn’t know their place. Would Hillary be willing to quietly stand in the shadows and perform mundane assignments of no real import? Would someone like her be content to play a supporting role while the lead character gets all the attention? Unlikely IMO.
She is a narcissist and an insatiable publicity hound. On top of that, she cannot be trusted. People like that are not a reliable political partner.
I don’t want her in the Naval Observatory. Hillary is an accident waiting to happen.