text:  You just don't know what's going to come out of his mouth. I think what a lot of Americans are going to see tonight, and the question that they continue to ask is, we already know that he wasn't up for the last four years, and further proof tonight that this guy is not capable of being a president for another six months, let alone another four years. I guess that kind of sets up the follow-up question to that is, if Biden, who has in the past shown the ability to show up for a very short amount of time,