 Finn Gomez, thanks. You're listening to live CBS News coverage of the first presidential debate hosted by CNN. Our simulcast of the debate is just ahead. Good to have along with us tonight Larry Sabato, political scientist, University of Virginia. He's the founder and director of the Center for Politics. Well, let's put you, Larry, in each of the camps. First, for President Biden, plenty of preparation, a lot of debate prep. And what's the goal for the White House tonight?