 Joe Biden had one thing he had to do tonight, and he didn't do it. He had one thing he had to accomplish, and that was reassure America that he was up to the job at his age. And he failed at that tonight. We'll play more of her later. Unless you're an MSNBC fan, you don't know her, but she's been a presence on that channel for a very long time. Former U.S. Senator, Democrat, who served with Joe Biden for many years.