Na..
Biden will be easy pickings if he's the guy. If it'll be between "two old white men".. Trump will destroy him.
Sanders is last cycle, even his far leftist base has abandoned him because of his (imo reasonable) views on stuff like border security and gun laws.. for all his socialist ideas, Bernie is not an open borders anarcho commie or a "gun grabber" authoritarian.. he's also an "old white man" which the racist/sexist left there detests.. Bernie is so 2016, guys got no chance..
They're not going to vote Kamala either, call it blue dog racism or whatever but she doesn't stand a chance outside of her super lefty coastal cities.
Speaker Pelosi is intensely aware of how this will play out but Trump's just trolled them all into branding the entire democrat party into one big commie coalition.
Wait for it, next he'll troll them with something like a "It boils my blood to see the Murrican' flag burned, I hate it !!!"
and right on cue a bunch of democrats/lefties will start burning their flag... hook, line, sinker... watch
but he did much better than Romney or McCain with that demographic, didn't he ?