text:  From ABC News, I'm Sherry Preston. We don't know how President Biden or former President Trump will do tonight in the first presidential debate of 2024, but we do know a lot of people will be watching. New poll from Quinnipiac University shows 72% of voters say they plan to tune in with more on the buildup to the event. Here's ABC's Perry Russell. Biden has been out of the public eye in recent days, holding mock debates.