Photo: Drew Angerer/Getty Images

White House press secretary Kayleigh McEnany tweeted Monday that President Trump will hold a coronavirus press briefing, after announcing earlier in the day that the White House would cancel its scheduled briefing.

What she's saying: "UPDATE: The White House has additional testing guidance and other announcements about safely opening up America again. President @realDonaldTrump will brief the nation during a press conference this evening."

The big picture: As Axios' Jonathan Swan reported last week, the Trump administration has moved to limit the briefings, fearing President Trump is overexposed and hurting his polling ahead of the 2020 presidential election. Trump did not take questions at a short briefing on Friday, and the White House did not hold a briefing over the weekend.

Go deeper ... Trump: White House press conferences aren't worth the "time and effort"

Editor's note: This story was updated after the White House announced it would hold a briefing, despite canceling it earlier.

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Updated Aug 4, 2020 - Health

The states where face coverings are mandatory

Data: Compiled by Axios; Map: Danielle Alberti/Axios

Mississippi Gov. Tate Reeves issued a statewide mask mandate on Tuesday for people in public, as well as teachers and students going back to school.

The big picture: 34 states, in addition to the District of Columbia, have issued some form of a mask mandate as infections surge across the country.

First bipartisan multistate coronavirus testing drive to tackle shortages

A Whittier Street Health Center nurse performs a COVID-19 test in Roxbury, Massachusetts, on Monday. Photo: Matt Stone/MediaNews Group/Boston Herald

A bipartisan group of governors has joined the Rockefeller Foundation to deliver 3 million rapid coronavirus antigen tests to slow the spread of COVID-19 and help states safely reopen, the nonprofit announced Tuesday.

Why it matters: With no national plan, the initiative with Maryland Gov. Larry Hogan (R), Louisiana Gov. John Bel Edwards (D), Massachusetts Gov. Charlie Baker (R), Michigan Gov. Gretchen Whitmer (D), Ohio Gov. Mike DeWine (R), and Virginia Gov. Ralph Northam (D) would be the first coordinated testing strategy in the U.S.

Aug 5, 2020 - Health

Moderna skirts disclosures of coronavirus vaccine costs

Photo: Blake Nissen for The Boston Globe via Getty Images

Moderna has not been living up to contractual obligations to disclose the percentage of taxpayer dollars that are funding its coronavirus vaccine project, but the pharmaceutical company tells Axios that federal money makes up "100% funding of the program."

Why it matters: Moderna has received almost $1 billion in taxpayer grants to get its vaccine through clinical trials and is considering setting the highest price of all coronavirus vaccine candidates.