The U.S. Supreme Court handed down a resounding defeat to California’s environmental radicals on Friday, ruling 7-2 in favor of energy producers challenging the Biden-era Environmental Protection Agency’s backing of extreme electric vehicle mandates.

Even one liberal justice crossed ideological lines to side with the constitutional majority in a decision that directly targets Governor Gavin Newsom’s aggressive climate agenda — an agenda aimed at banning gas-powered vehicles by 2035 and ramming through so-called “carbon neutrality” at any cost.

Writing for the majority, Justice Brett Kavanaugh made clear that California’s mandates — and the EPA’s enabling of them — are not only heavy-handed but potentially unlawful.

“The government generally may not target a business or industry through stringent and allegedly unlawful regulation, and then evade the resulting lawsuits by claiming that the targets of its regulation should be locked out of court as unaffected bystanders,” Kavanaugh stated.

The lawsuit, led by American Fuel & Petrochemical Manufacturers, targets California’s 2012 request for federal approval to implement sweeping new regulations that force automakers to reduce emissions and mandate a quota of electric vehicles. The justices ruled that energy producers do, in fact, have standing to sue.

Kavanaugh also called out the EPA’s legal flip-flopping, which undermined its credibility before the Court:

“EPA has repeatedly altered its legal position on whether the Clean Air Act authorizes California regulations targeting greenhouse gas emissions from new motor vehicles,” he noted.

The ruling comes just weeks after President Donald J. Trump signed three executive resolutions dismantling key pillars of California’s overreaching green energy framework — dealing a major blow to Newsom’s ambitions and asserting federal supremacy over radical state-level climate policies.

“This case involves California’s 2012 request for EPA approval of new California regulations,” Kavanaugh wrote. “Those regulations generally require automakers (i) to limit average greenhouse gas emissions across their fleets of new motor vehicles sold in the State and (ii) to manufacture a certain percentage of electric vehicles as part of their vehicle fleets.”

Chet Thompson, president and CEO of the American Fuel & Petrochemical Manufacturers, praised the decision as a constitutional win:

“The Supreme Court put to rest any question about whether fuel manufacturers have a right to challenge unlawful electric vehicle mandates,” Thompson told The Daily Caller. “California’s EV mandates are unlawful and bad for our country.”

He added:

“Congress did not give California special authority to regulate greenhouse gases, mandate electric vehicles or ban new gas car sales — all of which the state has attempted to do through its intentional misreading of statute.”

This ruling caps off a brutal week for Governor Gavin Newsom, who also suffered a legal loss in the Ninth Circuit Court of Appeals, which overturned a lower court ruling and affirmed President Trump’s authority to maintain control of the California National Guard.

The president took to Truth Social to celebrate the court’s ruling:

“The Appeals Court ruled last night that I can use the National Guard to keep our cities, in this case Los Angeles, safe,” Trump posted. “If I didn’t send the Military into Los Angeles, that city would be burning to the ground right now. We saved L.A. Thank you for the Decision!!!”

The reversal came after U.S. District Judge Charles Breyer accused Trump of violating the 10th Amendment by deploying elements of California’s National Guard to safeguard ICE agents and federal property — a move Breyer described as unconstitutional.

But the Ninth Circuit disagreed, granting the Trump administration’s motion to stay the ruling, once again affirming the President’s duty to protect the nation’s sovereignty and ensure law and order, even in lawless blue cities.