Photos: Alex Wong/Getty Images; Mandel Ngan/AFP via Getty Images

Mike Bloomberg and Bernie Sanders' presidential campaigns sparred Wednesday over which 78-year-old is in better cardiac health.

The big picture: The line of attack comes as Sanders, the race's current frontrunner, is set to meet Bloomberg, who has spent hundreds of millions of dollars to make a splash in the race, face-to-face for the first time on the debate stage in Nevada.

The state of play: Sanders' national press secretary Briahna Joy Gray told CNN that Bloomberg "has suffered heart attacks in the past."

  • Bloomberg senior adviser Tim O'Brien hit back on Twitter, calling the statement "a Trumpy lie from the Sanders campaign, which rolls like Trump in many ways."
  • Bloomberg released a letter from his doctor last year, which featured no mention of a heart attack but did note that he underwent coronary stent placement surgery in 2000.
  • Bloomberg campaign manager Kevin Sheekey said in a statement that the surgery occurred after a positive stress test and has been "public for years" since Bloomberg, who holds a pilot's license, had to inform the FAA when it occurred.
  • Gray later walked back her statement about Bloomberg on Twitter, stating that she "misspoke" and that he "underwent the same stent procedure as Bernie."

The other side: Sanders suffered a heart attack last October that briefly sidelined him from the campaign trail.

  • The Vermont senator released letters from his primary physician and two cardiologists late last year stating that he "has the mental and physical stamina to fully undertake the rigors of the presidency."
  • Sanders said this week that he was unlikely to disclose any additional medical information, stating that he has already put forth "quite as much as any other candidate has," reports The Hill.

Go deeper: Bernie Sanders released from hospital following heart attack

Go deeper

Updated 12 mins ago - Politics & Policy

Coronavirus dashboard

Illustration: Sarah Grillo/Axios

  1. Global: Total confirmed cases as of 8 a.m. ET: 33,137,748 — Total deaths: 998,372 — Total recoveries: 22,952,164Map.
  2. U.S.: Total confirmed cases as of 8 a.m. ET: 7,116,456 — Total deaths: 204,762 — Total recoveries: 2,766,280 — Total tests: 101,298,794Map.
  3. States: 3 states set single-day coronavirus case records last week
  4. Health: The childless vaccine. The long-term pain of the mental health pandemic
  5. World: India the second country after U.S. to hit 6 million cases
Dion Rabouin, author of Markets
29 mins ago - Economy & Business

Big Tech's share of the S&P 500 reached record level in August

Expand chart
Reproduced from The Leuthold Group; Chart: Axios Visuals

The gap between the weighting of the five largest companies in the S&P 500 and the 300 smallest rose to the highest ever at the end of August, according to data from the Leuthold Group.

Why it matters: The concentration of wealth in a few massive U.S. tech companies has reached a scale significantly greater than it was before the dot-com bubble burst.

Fortune 100 companies commit $3.3 billion to fight racism and inequality

Data: Fortune 500, Axios analysis of company statements, get the data; Chart: Andrew Witherspoon, Naema Ahmed/Axios

Big businesses continue to push funding toward fighting inequality and racism, with the 100 largest U.S. companies' monetary commitments rising to $3.33 billion since the death of George Floyd at the hands of Minneapolis police earlier this year, according to an Axios analysis.

Why it matters: The continued pace of funding commitments shows that months after Floyd's death there remains pressure for the wealthiest corporations to put their money behind social issues and efforts.

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