She may be dumb as a post but she ain’t blind. She knows the DNC wants to run out the clock with Joe so she doesn’t have the benefit of incumbency and they can slide Newsome right into the #1 slot. She’ll be screwed in the end (not a novel experience for her).
With Democrats, it doesn’t matter who is in the White House. The real power is behind the scenes, Joe’s just a placemarker.