text:  ABC News. I'm Chuck Sievertson. The Biden campaign and the fundraising appeal tonight saying if he were to quit because of his debate performance, it would lead to weeks of chaos and Donald Trump would win. ABC's Mary Alice Parks. They still believe they can win this if they organize, they do this on the ground. I had one interesting conversation I thought was worth noting with a former Bernie Sanders staffer. She now works for Democrats that are really invulnerable districts. And she said that. She said, put your head down and do the work. She said, my guy had a heart attack.