 USA Today columnist Rex Hupke predicts Trump will back out of the debate at the last minute. He points out that Trump has skipped more debates than he's attended. And if Trump shows, Hupke predicts he'll storm out when he hears something he doesn't like. Either way, Trump will claim victory and call it the greatest debate performance people have ever seen. Support is split between Biden and Trump. About 20% of the voters say they're undecided.