 He acknowledged that a lot can happen, but that he felt continued to say he was the best person to win. He pushed back on some of the reporting that he needs to go to bed earlier. He said he made a stupid mistake in the debate. That's a quote, stupid mistake, and that he needs to pace himself better. NPR's Franco Ortonia is reporting Biden did make a gaffe yesterday during the press conference. He referred to Vice President Trump instead of Vice President Kamala Harris.