Gilead gets FDA approval for remdesivir to treat Covid-19; Top disease expert says 60-70% of U.S. will be infected and virus could be around for at least two years; Remdesivir authorized for emergency use by FDA; In first briefing, new WH Press Secy vows to "never lie"; WH: Trump deciding how to handle China's "slow-walking" of virus; Trump says he's seen proof virus started in a Chinese lab, contradicting his own intelligence officials; Soon: Trump leaves White House for weekend at Camp David; U.S. makes big bet on vaccine company with unproven technology; U.S. paid $483 million to firm to make a coronavirus vaccine that has yet to bring a single product to market; Fauci: Shooting for a vaccine in January, but "can't guarantee"; Tyson, Smithfield to reopen two pork plants with limited production after Trump declares meat supply "critical"; Some stores limit meat purchases amid breaks in supply chain; Interpol warns of drug dealers disguising as food deliveries to sell during lockdown; Thousands line up for food at South African food bank; Remembering 28-year-old Valentina Blackhorse; Biden denies aide's claim he sexually assaulted her in 1993: "It's not true... This never happened";To learn more about how CNN protects listener privacy, visit cnn.com/privacy