 I'm Allison Keys. The pressure is mounting on President Biden to drop his bid for the White House amid worries about his age and his competence over that weak debate performance. Some Democrats are now worried about keeping control of Congress as well. CBS's Bradley Blackburn on reaction to Mr. Biden's latest performance. In an exclusive interview with ABC News anchor George Stephanopoulos, the president dismissed questions about his age and abilities. Can I run the 110th flight? No.