My guess is that Pete is our next president. Biden isn’t going to get the turn out, because people aren’t excited about his candidacy. Warren can’t eclipse Bernie. Independents matter in the end, and Bernie can’t court them as well as Pete.
Bernie could make it tough for Pete by choosing a moderate VP early, but I’m not sure that’s his style.
Pete needs to improve his support in the black community, and he could do so with a smart VP pick.
Trump just doesn’t want his Deutsche Bank records to come out. I think he cares about that more than the presidency. Barr is already trying to get ahead of that by giving protection for 2020 candidates.