The Biden bubble

Joe Biden might be back on the campaign trail after months of quarantining in the basement of his Delaware home, but his team is still trying to keep him inside an impenetrable coronavirus bubble. POLITICO's Chris Cadelago breaks down the extreme lengths the Biden campaign is going to prevent him from being exposed to coronavirus. Plus, Senate Democrats block the GOP's slimmed-down Covid bill. And Microsoft says Russia, China and Iran are trying to hack the presidential race. Chris Cadelago a national political reporter for POLITICO. Jeremy Siegel is a host for POLITICO Dispatch. Irene Noguchi is the executive producer of POLITICO audio. Jenny Ament is the senior producer of POLITICO audio.