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Attorney General Bill Barr. Photo: Drew Angerer/Getty Images

The Justice Department (DOJ) has opened an antitrust inquiry into 4 major automakers who recently struck a deal with California to boost emissions standards for their nationwide fleets, The Wall Street Journal reports.

Why it matters: The report, if correct, signals the opening of a new and high-stakes front in the fight between California and the White House over vehicle emissions and mileage rules.

Where it stands: The WSJ reports that DOJ is seeking to determine if Ford, VW, Honda and BMW "violated federal competition law by agreeing with each other to follow tailpipe-emissions standards beyond those proposed by the Trump administration."

The story cites anonymous sources familiar with the matter. DOJ declined to comment.

The big picture: The reported probe comes as the Trump administration is preparing to freeze Obama-era carbon emissions and mileage standards, rather than allowing them to grow significantly stronger through the mid-2020s.

One big question: Whether the prospect of facing an antitrust probe could deter other automakers from joining the pact with California.

Quick take: The development deepens the complexity of the regulatory battle for automakers. The industry chafed at Obama-era rules, calling them too strict, but does not support President Trump's effort to freeze the standards outright.

The industry hopes to avoid having to make cars for a split U.S. market in which California, the largest U.S. market, and roughly a dozen states that follow its lead have one set of rules that are different than the federal standards.

Go deeper:

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Americans are super-sizing their holiday travel

Illustration: Sarah Grillo/Axios

Americans are rushing back into holiday travel, and many are taking even longer trips now than they did before the pandemic began.

The big picture: After skipping Thanksgiving and Christmas gatherings last year, many people are eager to maximize this year's celebrations with friends and family. And flexible remote working arrangements make that easier than ever.

Updated 17 hours ago - Sports

The potential GOAT of chess faces intriguing challenger

Illustration: Sarah Grillo/Axios

The World Chess Championship between Norway's Magnus Carlsen and Russia's Ian Nepomniachtchi began on Friday, 1,094 days after Carlsen won his fourth consecutive title.

Why it matters: During the long, COVID-fueled layoff, chess entered a new era, and with the championship finally here, the age-old game is ready for its close-up.

Department of Interior proposes raising cost of drilling on public lands

A horizontal drilling rig and a pump jack sit on federal land in Lea County, New Mexico. Photo: Callaghan O'Hare/Bloomberg via Getty Images

Oil and gas companies should pay more to drill on federal lands and waters, the Department of the Interior argued in a report released Friday, saying that the current rates were "outdated."

Driving the news: The Department of Interior report said that the federal government's oil and gas leasing and permitting program "fails to provide a fair return to taxpayers, even before factoring in the resulting climate-related costs that must be borne by taxpayers."