CEO Elon Musk at the Model 3 launch in 2016. (Photo: Justin Pritchard / AP)

A second senior battery executive in three months has left Tesla, the electric car company. Jon Wagner, director of battery engineering, exited in recent weeks, Jalopnik's Ryan Felton reports, and his Linkedin page says he is now working on a "stealth startup." That comes after the August departure of Kurt Kelty, who was director of battery technology and had been with Tesla since 2006, before the company produced its first car.

Why it matters: Tesla declined to comment. But the dual exits come at a crucial inflection point for the company, which is attempting to transform itself from a niche carmaker for the rich into a mainstream giant that triggers the creation of a global electric car industry. Key to that is the success of the mainstream-priced Model 3, which has had a choppy few months since its launch in July.

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Updated 32 mins ago - Politics & Policy

Coronavirus dashboard

Illustration: Eniola Odetunde/Axios

  1. Global: Total confirmed cases as of 12:30 p.m. ET: 11,662,574 — Total deaths: 539,058 — Total recoveries — 6,336,732Map.
  2. U.S.: Total confirmed cases as of 12:30 p.m. ET: 2,948,397 — Total deaths: 130,430 — Total recoveries: 924,148 — Total tested: 36,032,329Map.
  3. States: Arizona reports record 117 deaths in 24 hours.
  4. Public health: Trump administration invests $2 billion in coronavirus drugs.
  5. Business: Breaking down the PPP disclosure debacle
  6. World: Brazil's President Bolsonaro tests positive for coronavirus — India reports third-highest coronavirus case count in the world.

Mary Trump book: How she leaked Trump financials to NYT

Simon & Schuster

In her new memoir, President Trump's niece reveals how she leaked hordes of confidential Trump family financial documents to the New York Times in an effort to expose her uncle, whom she portrays as a dangerous sociopath.

Why it matters: Trump was furious when he found out recently that Mary Trump, a trained psychologist, would be publishing a tell-all memoir. And Trump's younger brother, Robert, tried and failed to block the publication of "Too Much and Never Enough: How My Family Created the World's Most Dangerous Man."

2 hours ago - World

Brazil's Bolsonaro tests positive for coronavirus

Photo: Andre Borges/NurPhoto via Getty Images

Brazilian President Jair Bolsonaro announced Tuesday that he tested positive for coronavirus.

Why it matters: Brazil's coronavirus outbreak is one of the largest in the world, topped only by the U.S., and Bolsonaro has long downplayed the effects of the virus, pushing businesses to reopen over the last few months in order to jumpstart the country's economy.