Photo: Alastair Pike/AFP via Getty Images

Chad Wolf is now the acting secretary of the Department of Homeland Security, the Washington Post's Nick Miroff reports. He was sworn in the same day he was confirmed by the Senate to an undersecretary position.

Why it matters: Wolf is the fifth person to lead DHS under Trump, replacing Kevin McAleenan whose resignation was announced almost five weeks ago. Some hardliners have questioned his commitment to the president's immigration agenda. Wolf is expected to elevate Ken Cuccinelli — a conservative favorite serving as acting director of Citizenship and Immigration Services — to the second highest position in the agency, CNN and the Wall Street Journal reported.

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Updated 31 mins ago - Health

World coronavirus updates

Data: The Center for Systems Science and Engineering at Johns Hopkins; Map: Axios Visuals

New Zealand Prime Minister Jacinda Ardern said it's too early to say whether next month's elections will be postponed after she announced Tuesday four people had tested positive for COVID-19 after no local cases for 102 days.

Zoom in: NZ's most populous city, Auckland, has gone on lockdown for 72 hours and the rest of the country is under lesser restrictions.

Updated 2 hours ago - Politics & Policy

Coronavirus dashboard

Illustration: Annelise Capossela/Axios

  1. Global: Total confirmed cases as of 8 p.m. ET: 20,188,678 — Total deaths: 738,668 — Total recoveries: 12,452,126Map.
  2. U.S.: Total confirmed cases as of 8 p.m. ET: 5,138,850 — Total deaths: 164,480 — Total recoveries: 1,714,960 — Total tests: 63,252,257Map.
  3. States: Georgia reports 137 coronavirus deaths, setting new daily record Florida reports another daily record for deaths.
  4. Health care: Trump administration buys 100 million doses of Moderna's coronavirus vaccine.
  5. Business: Moderna reveals it may not hold patent rights for vaccine.
  6. Sports: Big Ten scraps fall football season.

Voters cast ballots in Minnesota, Georgia, Connecticut, Wisconsin and Vermont

Photo: Spencer Platt/Getty Images

Primary elections are being held on Tuesday in Minnesota, Georgia, Connecticut, Vermont and Wisconsin.

The big picture: Georgia and Wisconsin both struggled to hold primaries during the coronavirus pandemic, but are doing so again — testing their voting systems ahead of the general election. Rep. Ilhan Omar (D-Minn.) is facing a strong challenger as she fights for her political career. In Georgia, a Republican primary runoff pits a QAnon supporter against a hardline conservative.