I will be very, very surprised if Joe Biden is the nominee & his VP pick is not a (current or former) Senator. Biden's just more at home with Senators. He's like the Senate equivalent of a boy raised by wolves.https://twitter.com/jbarro/status/1204861869347000323 …
Although she did launch the busing attack, plus the two of them reinforce the Drug Warrior ticket. I'd still expect Duckworth or maybe Baldwin as a likelier pick.