 President Biden today rallied in Pennsylvania to show he's fit for another four years in office. Republican U.S. Senator Lindsey Graham doubtful. I believe before this is all said and done that President Biden most likely will be replaced. And Kamala Harris is going to be very vigorous, but she's for the Green New Deal. She's for Medicare for all. Graham on CBS's Face the Nation. CBS News Brief. I'm Heather Bosch.