Clinton aides already talking about VP options

[Xing]

I'd say Kaine or Booker would both be good choices. She won't pick Bennet, since he's up for re-election, and contrary to everyone here who seems to think that CO will be Safe R in the presidential election, I think Hillary could win CO without Bennet on the ticket (she could also win Virginia without Kaine on the ticket, but that's certainly not why she would pick Kaine.)