 This is the new brand of Trumpism. Donald Trump set to formally accept his party's nomination tonight. President Biden left the campaign trail in Las Vegas after he tested positive for COVID. Correspondent Weijia Jiang. He has already taken one dose of Paxlovid, which is used to treat COVID, and he will self-isolate at home in Delaware. A new AP-NORC poll reveals two-thirds of Democrats think the president should drop out. CBS News Special Report. I'm Deborah Rodriguez.