Add Sen. Cory Booker to the list of prominent Democrats endorsing a single-payer health care system. Booker said in a television interview Monday that he would cosponsor Sen. Bernie Sanders's single-payer bill — which Sens. Kamala Harris and Elizabeth Warren have also endorsed. Sanders is set to introduce the bill Wednesday.

Why it matters: Support for single-payer is rapidly becoming a litmus test for Democrats who are even thinking about their party's 2020 presidential primary.

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Coronavirus dashboard

Illustration: Eniola Odetunde/Axios

  1. Global: Total confirmed cases as of 9:30 p.m. ET: 18,996,008 — Total deaths: 712,476— Total recoveries — 11,478,835Map.
  2. U.S.: Total confirmed cases as of 9:30 p.m. ET: 4,877,115 — Total deaths: 159,990 — Total recoveries: 1,598,624 — Total tests: 59,652,675Map.
  3. Politics: Pelosi rips GOP over stimulus negotiations: "Perhaps you mistook them for somebody who gives a damn" — Ohio Gov. Mike DeWine tests positive.
  4. Public health: Majority of Americans say states reopened too quicklyFauci says task force will examine aerosolized spread Study finds COVID-19 antibodies prevalent in NYC health care workers.
  5. Business: The health care sector imploded in Q2More farmers are declaring bankruptcyJuly's jobs report could be an inflection point for the recovery.
  6. Sports: Where college football's biggest conferences stand on playing.

Trump issues order banning TikTok if not sold within 45 days

Illustration: Aïda Amer/Axios

Americans and U.S. companies will be banned from making transactions with ByteDance, the Chinese owner of TikTok, in 45 days, according to a new executive order President Trump issued Thursday evening.

The big picture: Last week Trump announced his intention to ban TikTok but said he'd leave a 45-day period for Microsoft or other U.S.-based suitors to try to close a deal to acquire the popular video-sharing app.

Bill Hagerty wins Republican Senate nomination in Tennessee primary

Former U.S. Ambassador to Japan Bill Hagerty speaking at CPAC in 2019. Photo: Mandel Ngan/AFP via Getty Images

Former U.S. Ambassador to Japan Bill Hagerty won the Tennessee Republican Senate primary on Thursday evening, beating out surgeon Manny Sethi for GOP Sen. Lamar Alexander's seat, who announced his retirement in late 2018, AP reports.

Why it matters: Though the race narrowed in July, Hagerty — who received President Trump's endorsement in 2019 — stuck close to the president's messaging and touted his Tennessee roots.