text:  The calls for President Biden to exit the presidential race are growing louder. But Biden campaign manager Jen O'Malley Dillon reiterated today on MSNBC that dropping out is not going to happen. Joe Biden is more committed than ever to beat Donald Trump. And we believe on this campaign we are built for the close election that we are in and we see the path forward. NPR political correspondent Sue Davis is here with the latest. Hi, Sue. Hey, Ari. Today, more Democrats are publicly calling on Biden to step aside. Bring us up to speed.