 Live from NPR News in Culver City, California, I'm Dwayne Brown. The Biden campaign is calling for unity as the president resists calls to step aside, saying he'll return to the campaign trail next week. Biden's been sidelined with COVID-19 as pressure from Democrats at the highest levels have urged the president to bow out. Biden's campaign chair, Jen O'Malley Dillon, acknowledges there's been some slippage in support for the president, but says she sees multiple paths to beating Donald Trump.