In June 2022, in West Virginia v. Environmental Protection Agency, the U.S. Supreme Court announced that on “major questions” the U.S. Congress must legislate with far more clarity and specificity than previously demanded. The Court held the U.S. Environmental Protection Agency (EPA) may regulate power plant carbon emissions in traditional ways, but the novel approach taken in the Clean Power Plan required clearer authorization than Congress had provided. Six weeks later, Congress enacted the Inflation Reduction Act (IRA).