Biden's legacy will now include that he put his own ego and personal interests aside for a better chance to keep a Dem President. If Biden is as mentally compromised as some think, he was solely focused on the fact that, in his mind, he was the only one to beat Trump.

I will disagree on this one. His legacy will be that he shouldn't have been put up to begin with. If it was, as you say soccer, he would have backed off right after the debate debacle when many dems called for him to do so. I don't think his ego allowed him to.

You can deny his mental state but if you look at all the video after the debate, including Obama walking him off stage, he is obviously not as sharp as he needs to be,