text:  Live from NPR News in Washington, I'm Jack Spear. President Joe Biden in a wide-ranging interview with ABC News moderator George Stephanopoulos tonight was at turns forceful and conciliatory in terms of the future of his campaign. The president repeating he has no intention of leaving the race. Impressed on whether he'd be willing to take an independent neurological and cognitive exam, Biden initially pushed back. I have a cognitive test every single day.