 From the Brown Physicians News Center, I'm Steve Clampkin with the 6 o'clock WPR Ronews. Good morning. President Biden fielding tough questions and vowing to finish the job he started in a rare solo news conference last night, the president acknowledging he needs to pace himself, saying he'd only drop out of the race if the polls say he will not win. Biden defending his record and offering detailed answers on foreign and domestic policies, but he also had some slip-ups. Here's ABC's