I'm honestly shocked she dropped out. I figured the DNC would tell her to stay in it, since she's taking more voters from Bernie than Biden.
The fear was that the two of them could keep Biden from getting enough delegates. There are morons who would vote for that goofy shrew who wouldn't vote for Commie Sanders. Not many, but probably enough so that if she stayed in it and her delegates went to Bernie at the end? Mung Bean Smell Joe wouldn't quite get to the number and the whole thing devolves into brokered chaos.
There's also that whole conspiracy theory that Hillary is back there puppeting the thing. The story is that she's angling to be named VP, knowing that Decrepit Joe won't make it to the end of his term and viola! the bitch is president anyway.
Of course anybody who picks her as VP is dead man walking anyway. Would accidentally fall from the stage moments after taking the oath of office. The fact that a bird flew over his head just before he fell and there's an unexplained hole in his skull would just be glossed over. Nobody makes drones that look like birds and have rifles attached to their bird titties.
What difference does it make?