Photo: Kerem Yucel/AFP via Getty Images

Three states are set to move forward with primaries today, even as the coronavirus pandemic shuts down schools, restaurants and large gatherings across the world.

Why it matters: Sen. Bernie Sanders and former Vice President Joe Biden are competing for votes in Arizona, Florida and Illinois and their total trove of 664 delegates. But Ohio has declared a public health emergency, postponing the primaries because of concerns about COVID-19.

  • Biden has a chance to run up his delegate count against Sanders.
  • Sanders' chance at the nomination will be at serious risk if he can't muster a significant turnaround today. He currently needs 57% of the remaining delegates to win the nomination.
  • Tulsi Gabbard also remains in the race.

The delegate count so far:

  • Biden: 889 delegates
  • Sanders: 739 delegates
  • Gabbard: 2 delegates

Polls close at 8 p.m. ET in

  • Arizona, which has 79 delegates
  • Florida, which has 248 delegates

Polls close at 9 p.m. ET in

  • Illinois, which has 184 delegates

The state of play: Biden hasn't relinquished the momentum he gained when he won decisively in South Carolina last month, followed days later by a strong showing on Super Tuesday and the March 10 primaries.

  • Biden is the overwhelming favorite in polls in all four states, per FiveThirtyEight.

The big picture: Fears of spreading the coronavirus have already delayed elections in Georgia, Louisiana, and Ohio and canceled in-person voting in Wyoming.

  • Top elections officials in Arizona, Illinois, and Florida have said they are confident "that voters in our states can safely and securely cast their ballots in this election."
  • Ohio Gov. Mike DeWine tweeted late Monday that the state health commissioner had declared a health emergency and ordered Ohio polls closed. A judge had ruled earlier in the day that the primaries could proceed as scheduled on Tuesday.
  • Sanders campaign communications director Mike Casca said in a statement on Tuesday, "We are making clear to voters that we believe going to the polls amid the coronavirus outbreak is a personal decision and we respect whichever choice they make."

Go deeper: Campaigning in the age of the coronavirus

Go deeper

Voters head to the polls for key primaries in Kentucky and New York

Brooklyn Museum polling site, June 23, New York City. Photo: Angela Weiss/AFP/Getty Images

Primary elections initially delayed by the coronavirus are taking place on Tuesday in North Carolina, Virginia, Mississippi, Kentucky and New York.

The big picture: Establishment-backed candidates have been pitted against progressive challengers in several of the Democratic congressional primaries being held Tuesday — including one race that could see the powerful chairman of the House Foreign Affairs Committee unseated after 16 terms in Congress.

Updated 4 hours ago - Politics & Policy

Coronavirus dashboard

Illustration: Sarah Grillo/Axios

  1. Global: Total confirmed cases as of 7 p.m. ET: 12,859,834 — Total deaths: 567,123 — Total recoveries — 7,062,085Map.
  2. U.S.: Total confirmed cases as of 7 p.m. ET: 3,297,501— Total deaths: 135,155 — Total recoveries: 1,006,326 — Total tested: 40,282,176Map.
  3. States: Florida smashes single-day record for new coronavirus cases with over 15,000 — NYC reports zero coronavirus deaths for first time since pandemic hit.
  4. Public health: Ex-FDA chief projects "apex" of South's coronavirus curve in 2-3 weeks — Coronavirus testing czar: Lockdowns in hotspots "should be on the table"
  5. 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."

Focus group: Pennsylvania swing voters look to shake-up for stability

Illustration: Sarah Grillo/Axios

Some swing voters in Erie, Pa., tell us they're gravitating to Joe Biden — less as a change agent than as a path back to stability, and to restoring the national respect they feel has been lost under President Trump.

The big picture: This was the first time in 16 of our monthly Engagious/Schlesinger swing-voter focus groups that more participants opposed Trump than supported him.