The EPA Defies the Supreme Court

In politics, inadvertently telling the truth is called a “gaffe.” Last year Michael Regan, administrator of the Environmental Protection Agency, made a remark in passing that gave away the Biden administration’s plans for enforcing its climate agenda through a “suite of rules” imposed under programs lacking any credible connection to climate. A few months later, a Supreme Court opinion transformed Mr. Regan’s indiscretion into justification for wholesale judicial repudiation of the Biden administration’s climate regulatory blitz.

Mr. Regan’s comment came on March 10, 2022, when he addressed the press following his...