 Then Biden sits down for an interview with ABC's George Stephanopoulos that's being treated like a televised cognitive test for the 81-year-old president. NPR senior White House correspondent Tamara Keith joins us now with more. Hey, Tam. Hi, Elsa. OK, so ever since last week's debate, Biden has been under growing pressure from Democrats to either prove he has what it takes or to step aside, which makes today really high stakes, right? It's about proving he has the fire to win.