The Situation Room with Wolf Blitzer

The United States death toll tops 166,000, with more than 5.2 million cases after the deadliest day of the pandemic since May. Florida sees more than 4,000 cases a day for 51 straight days. The next season has been labeled the "worst Fall" in public health history. 

Biden and Harris call for mask mandates in every state, which is drawing direct contrasts with Trump's Covid response. Biden says, "be a patriot, wear a mask to save lives," to Americans. Biden campaign: Huge fundraising after Harris joined ticket. 

Trump unloads on Harris and calls her "mean," "nasty" and "angry." Trump admits he opposes new postal service funding to black mail-in voting. Federal judge demands Trump campaign and RNC show evidence of vote-by-mail fraud. Trump attacks his FBI director, issues warning to Attorney General Barr.

Fauci says, "We've got to think about returning to some sense of normalcy." Fauci also says, "Bottom line... I'm not pleased with how things are going." Fauci urges Americans to get outdoors as much as possible and to keep windows open. 

CDC Chief breaks from Trump's spin and admits "we were underprepared" for crisis. 

More than 2,000 students and school staff are quarantined as schools reopen. Giroir says that having an indoor house party is equivalent to going to a bar. 

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