Supreme Court Just Slammed The Door On California’s Last Defense For Its EV Mandate

California thought it could hide behind legal technicalities to force its green energy religion on the entire country.

The Supreme Court just told them to think again.

In a 7-2 ruling that even liberal Justice Elena Kagan joined, the Court cleared the way for energy producers to finally challenge the EPA's approval of California's extreme vehicle mandates in court.

Kavanaugh Destroys EPA's Standing Argument

Justice Brett Kavanaugh wrote the majority opinion and didn't mince words.

"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."

The EPA and California argued that fuel producers shouldn't even be allowed to sue.

Kavanaugh called that garbage reasoning.

The regulations force automakers to manufacture electric vehicles and limit greenhouse gas emissions across their entire vehicle fleets.

Fewer gas-powered cars means less gasoline demand, which means fuel producers lose revenue.

"Even 'one dollar' of additional revenue for the fuel producers would satisfy the redressability component of Article III standing," Kavanaugh wrote.

It's basic economics.

EPA Changed Its Story Four Times In Sixteen Years

Kavanaugh also caught the EPA in an embarrassing pattern.

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

Under Bush in 2008, the EPA said no.

Under Obama in 2013, the EPA said yes.

Under Trump in 2019, the EPA said no.

Under Biden in 2022, the EPA flipped back to yes.

Trump Already Wiped Out California's 2035 Gas Car Ban

This ruling follows President Trump's June 2025 decision to sign three Congressional Review Act resolutions killing California's EV mandates.

Those resolutions targeted California's Advanced Clean Cars II rule that would have banned all gas-powered vehicle sales by 2035.

They also eliminated California's Advanced Clean Trucks mandate and heavy-duty emissions standards.

Trump called California's approach "a disaster for this country" at the White House signing ceremony.

Seventeen states had adopted California's regulations, creating a de facto nationwide EV mandate without Congress ever voting on it.

Now fuel producers can challenge whatever climate schemes California tries next.

Jackson's Dissent Exposes Liberal View Of The Courts

Justice Ketanji Brown Jackson wrote a dissenting opinion revealing how liberals view the legal system.

She complained that the decision "gives fodder to the unfortunate perception that moneyed interests enjoy an easier road to relief in this Court than ordinary citizens."

Translation: successful companies shouldn't be allowed to challenge regulations that could destroy their businesses.

Jackson argued the case would soon be moot anyway because Trump's EPA already moved to revoke California's waivers.

"I worry that the fuel industry's gain comes at a reputational cost for this Court, which is already viewed by many as being overly sympathetic to corporate interests," Jackson wrote.

She's worried about the Court's reputation for letting companies challenge government overreach.

Justice Sotomayor filed her own dissent making similar arguments.

But Kagan sided with the conservative majority because the law was clear.

The Trillion-Dollar Endangerment Finding Scam

This ruling connects to Trump's announcement yesterday terminating the 2009 Endangerment Finding.

That Obama-era determination claimed greenhouse gases endanger public health under the Clean Air Act.

Congress passed the Clean Air Act in 1970.

The law was supposedly designed to regulate pollutants causing immediate health problems like smoke and exhaust, not gases that everything living produces by breathing.

Sadly in reality, it was never even actually allowed to help people who were harmed by polluters because it handed individuals rights’ to seek redress in the courts over to state governments and environmental groups – meaning political cronies would often get a slap on the wrist.

And even when they did get sued the people actually harmed only got a sliver of the damage awards while the bulk went to the states and environmental group plaintiffs.

The Endangerment Finding put the so-called Clean Air Act on steroids and let the EPA regulate American life without congressional authorization.

It led to rules costing over a trillion dollars.

Biden's EPA used it to force almost all new vehicles to be electric by 2032.

EPA Administrator Lee Zeldin called the repeal "the largest act of deregulation in the history of the United States."

Trump said it will save families over $1.3 trillion and reduce new vehicle costs by more than $2,400 per car.

California's Special Privilege Gets Challenged

California is the only state allowed to set stricter vehicle emission standards than federal law.

The EPA granted this privilege supposedly to address California's specific air quality problems.

But California stopped using the waiver for local air quality decades ago.

Instead, California requested waivers based on global climate change, which affects every state equally.

Bush's EPA denied California's first climate-based request in 2008, explaining the Clean Air Act permits California standards for local and regional pollution, not global climate efforts.

Obama's EPA approved California's climate regulations anyway in 2013.

The Supreme Court just made it possible to challenge whether that approval was legal.

Fuel Producers Have More Lawsuits Ready

The Supreme Court's standing ruling affects multiple pending challenges in the D.C. Circuit Court.

California's Advanced Clean Trucks rule faces legal challenges from the same fuel producers.

Those cases were on hold pending this decision.

This battle isn't about one set of regulations.

It's about whether California can use federal waivers to impose national energy policy that Congress never authorized.

Seventeen states plus D.C. adopted California's standards, meaning California's regulations control vehicle standards for over 40% of the U.S. auto market.

One state shouldn't have that power when it's being used for political purposes having nothing to do with California's air quality needs.

Newsom Is Already Defying Federal Law

After Trump signed the resolutions blocking California's waivers, Governor Newsom ordered the state to keep enforcing them.

Newsom signed an executive order directing California's Air Resources Board to develop new zero-emission regulations.

California and ten other states sued, claiming the CRA resolutions are unconstitutional.

They argue Congress can only use the CRA to overturn federal agency rules, not state regulation waivers.

The White House made clear that under the CRA, the EPA cannot approve any future waivers that are "substantially the same" as those Congress disapproved.

That means even if California develops new regulations, Trump's EPA can't approve similar waivers.

Newsom is setting up a collision between state and federal authority that will end back at the Supreme Court.

---

Sources:

• Martin Walsh, "Supreme Court Deals Crushing Blow To California's EV Mandate," Conservative Brief, February 12, 2026.
• Brett Kavanaugh, Diamond Alternative Energy v. EPA, Supreme Court Opinion, June 20, 2025.
• John L. Watson, "Battle Over California's Vehicle Air Emission Waivers Now in U.S. District Court," Spencer Fane, September 23, 2025.
• "EPA reverses long-standing climate change finding," NBC News, February 12, 2026.
• "Trump revokes EPA endangerment finding on greenhouse gas emissions," CNBC, February 12, 2026.
• "SCOTUS lets fuel industry challenge California's emission rules," Landline Media, June 24, 2025.
• "Supreme Court greenlights reckoning on California EV mandate," Courthouse News Service, June 20, 2025.