Don't think this is Jill.
I thought initial reports said Sanders resigned. A black woman getting by Harris, if Poso is to be believed, is a different animal.
My hunch is that Harris isn't delivering blacks they way it was hoped for. I'd be on the lookout for black female VP hopefuls as the instigator.
Tells Sanders that Harris is a dead end, career wise, and offer up a future safe position on the new VP's staff if she would just run out some dirty laundry on CNN.