The Nike ZoomX Vaporfly Next%. Screenshot: Nike.com

Last weekend, Eliud Kipchoge became the first human to run a marathon in under 2 hours and Brigid Kosgei shattered the women's marathon record.

Why it matters: "It appears that running, the original and most elemental of sports, now faces the same tradition vs. scientific innovation challenge that other sports have encountered," writes NYT's Amby Burfoot.

  • "Think: tennis rackets, baseball bats and, perhaps most similar, competition swimwear — those polyurethane-based suits that were banned starting in 2010."

Key detail: They were both wearing a pair of Nike shoes called the "Vaporfly," which have proven controversial because of the performance boost they seem to provide.

  • In the last 13 months alone, male runners have recorded the 5 fastest marathon times ever — all while wearing a version of the "Vaporfly."
  • Why they're better: They have a carbon fiber plate embedded in the midsole, which acts as a spring and provides more energy return.

Driving the news: After receiving numerous complaints from runners who believe the shoes provide an unfair advantage, the International Association of Athletics Federations (IAAF) has put together a team to "consider the issues."

The bottom line: The outcome of this debate will affect everything from stock prices (Nike and their competitors) to who wins the marathon at the 2020 Olympics.

  • P.S. ... Speaking of the 2020 marathon, the IOC announced on Wednesday that it will be held in Sapporo, rather than Tokyo, due to heat concerns.

Go deeper

Filing suggests Manhattan DA is investigating Trump for possible fraud

Photo: Brendan Smialowski/AFP

The Manhattan District Attorney's office suggested for the first time Monday that it's investigating President Trump and his company for "alleged bank and insurance fraud," the New York Times first reported.

The state of play: The disclosure was made in a filing in federal court that seeks to force accounting firm Mazars USA to comply with a subpoena for eight years of Trump's personal and corporate tax returns.

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Illustration: Sarah Grillo/Axios

  1. Global: Total confirmed cases as of 1 p.m. ET: 18,139,438 — Total deaths: 690,452 — Total recoveries — 10,751,618Map.
  2. U.S.: Total confirmed cases as of 1 p.m. ET: 4,682,461 — Total deaths: 154,965 — Total recoveries: 1,468,689 — Total tests: 56,812,162Map.
  3. Politics: White House will require staff to undergo randomized coronavirus testing — Pelosi says Birx "enabled" Trump on misinformation.
  4. Business: Virtual school is another setback for retail — The pandemic hasn't hampered health care.
  5. Public health: Former FDA chief says MLB outbreaks should be warning sign for schools.

House Democrats subpoena top Pompeo aides in probe of IG firing

Mike Pompeo. Photo: Jim Lo Scalzo-Pool/Getty Images

The Democratic chairs of the House Oversight and House Foreign Affairs committees announced subpoenas Monday for four State Department officials as part of their investigation into the firing of former Inspector General Steve Linick.

Why it matters: The two committees, in addition to Democrats on the Senate Foreign Relations Committee, are investigating whether Linick was fired because he was probing Secretary of State Mike Pompeo and the State Department's attempts to bypass Congress to sell weapons to Saudi Arabia and the United Arab Emirates.