 President Joe Biden reflected on his career, blah, blah, blah, isolated, frustrated and angry. He felt betrayed by allies who turned on him in his hour of need. He's really peed off. So the person in touch with the Biden in a circle, mad as he was, he still grudgingly accepted he could not sustain his campaign with poll numbers slipping, donors fleeing and party luminaries pushing him out. OK, why are they?