Cory Booker, Kamala Harris, Pete Buttigieg and Elizabeth Warren. Photos: Scott Olson/Getty Images, Jim Watson/AFP/Getty Images, and Brendan Smialowski/AFP/Getty Images

The fourth round of Democratic debates will be held on Oct. 15 in Westerville, Ohio, with 12 candidates onstage, making it the biggest single-night debate to date. 

How it works: This debate had the same requirements as September's. Qualifying candidates must have reached 2% in 4 DNC-approved polls and drawn 130,000 unique donors — including 400 donors in 20 different states. Oct. 1 was the final day to make the cut.

Why it matters: The Democrats' massive 2020 field has put pressure on the DNC to focus its primary on those who can really challenge President Trump.

Which candidates will be on stage:
  1. Sen. Amy Klobuchar
  2. Sen. Cory Booker
  3. Mayor Pete Buttigieg
  4. Sen. Bernie Sanders
  5. Former Vice President Joe Biden
  6. Sen. Elizabeth Warren
  7. Sen. Kamala Harris
  8. Entrepreneur Andrew Yang
  9. Former Rep. Beto O'Rourke
  10. Former HUD Secretary Julián Castro
  11. Billionaire and activist Tom Steyer
  12. Rep. Tulsi Gabbard
Candidates that had at least 130,000 donors but did not meet the polling threshold:
  1. Author Marianne Williamson
Candidates who did not meet any qualifications for Ohio:
  1. Mayor Wayne Messam
  2. Former Rep. Joe Sestak
  3. Former Rep. John Delaney
  4. Rep. Tim Ryan
  5. Sen. Michael Bennet
  6. Gov. Steve Bullock

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Editor's note: This piece has been updated to reflect recent DNC requirement changes for the October debate.

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Illustration: Sarah Grillo/Axios

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  3. Politics: Trump wears face mask in public for first time.
  4. States: Florida smashes single-day record for new coronavirus cases with over 15,000.
  5. Public health: Trump's coronavirus testing czar says lockdowns in hotspots "should be on the table" — We're losing the war on the coronavirus.
  6. Education: Betsy DeVos says schools that don't reopen shouldn't get federal funds — Pelosi accuses Trump of "messing with the health of our children."
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Florida smashes single-day record for new coronavirus cases

Data: Covid Tracking Project; Chart: Axios Visuals

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The big picture: The figure shatters both Florida's previous record of 11,458 new cases and the single-state record of 11,694 set by California last week, according to AP. It also surpasses New York's daily peak of 11,571 new cases in April, and comes just a day after Disney World reopened in Orlando.

Pelosi: Trump is "messing with the health of our children" with push to open schools

House Speaker Nancy Pelosi said on CNN's "State of the Union" Sunday that Education Secretary Betsy DeVos' aggressive push to fully reopen schools this fall is "malfeasance and dereliction of duty," accusing the Trump administration of "messing with the health of our children."

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