Illustration: Sarah Grillo/Axios

The battle between the Trump administration and California over vehicle carbon emissions and mileage is getting hotter.

The latest: Trump announced on Twitter Wednesday that the EPA will revoke California's waiver under the Clean Air Act that enables the state to set CO2 emissions rules that exceed federal standards.

"The Trump Administration is revoking California’s Federal Waiver on emissions in order to produce far less expensive cars for the consumer, while at the same time making the cars substantially SAFER. This will lead to more production because of this pricing and safety advantage, and also due to the fact that older, highly polluting cars, will be replaced by new, extremely environmentally friendly cars. There will be very little difference in emissions between the California Standard and the new U.S. Standard, but the cars will be far safer and much less expensive. Many more cars will be produced under the new and uniform standard, meaning significantly more JOBS, JOBS, JOBS! Automakers should seize this opportunity because without this alternative to California, you will be out of business."

Why it matters: California wants to keep toughening the rules — which by proxy means tougher mileage mandates — in a way that's almost as strict as the national Obama-era standards they were following.

  • But the White House is moving ahead with plans to freeze the Obama administration's federal emissions and mileage rules instead of allowing them to keep tightening.
  • California is certain to battle the effort in court once it's finalized.

The big picture: California is the nation's largest auto market and roughly a dozen other states plan to follow California's emissions standards. This all has the auto industry fearful of a split national market.

Quick take: The EPA move could snuff out any hope automakers might have of avoiding a bitter legal fight between the administration and California that ensures ongoing uncertainty about standards — one where they're caught in the middle.

The bottom line: "This will be the biggest fight in environmental law since the Clean Power Plan. Maybe bigger," Nathan Richardson of the University of South Carolina School of Law, said via Twitter.

The intrigue: The political landscape could shift quickly if a Democrat wins the White House, but that's hardly a guarantee of smooth sailing for the industry either.

  • That's because several leading Democratic 2020 hopefuls want to go beyond former President Obama's rules that automakers called unworkable.

Go deeper

Trump commutes Roger Stone's sentence

Roger Stone arriving at his sentencing hearing on Feb. 20. Photo: Drew Angerer/Getty Images

President Trump on Friday evening commuted the sentence of his longtime associate Roger Stone, according to two senior administration officials. Stone in February was sentenced to 40 months in prison for crimes including obstruction, witness tampering and making false statements to Congress.

Why it matters: The controversial move brings an abrupt end to the possibility of Stone spending time behind bars. He had been scheduled to report to prison on July 14.

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Which states have set single-day coronavirus records this week

Data: COVID Tracking Project and state health department data compiled by Axios; Map: Danielle Alberti and Naema Ahmed/Axios

13 states this week surpassed records set just last week for their highest number of coronavirus infections in a single day, according to the COVID Tracking Project and state health department data. 16 states in total reported new highs.

The big picture: The United States' alarming rise in coronavirus cases isn't just due to increased testing — particularly where the number of cases has grown fastest over the last month, Axios' Andrew Witherspoon and Caitlin Owens report.

Updated 10 hours ago - Politics & Policy

Coronavirus dashboard

Illustration: Sarah Grillo/Axios

  1. Global: Total confirmed cases as of 6:30 p.m. ET: 12,389,660 — Total deaths: 557,279 — Total recoveries — 6,830,596Map.
  2. U.S.: Total confirmed cases as of 6:30 p.m. ET: 3,169,611 — Total deaths: 133,885 — Total recoveries: 983,185 — Total tested: 38,856,341Map.
  3. Public health: The reality of the coronavirus bites.
  4. Trade: Trump says he's no longer considering phase-two trade deal with China because the pandemic damaged the two countries' relationship.
  5. 🎧 Podcast: Rural America has its own coronavirus problem.