Over the last decade, critics of the regulatory state have complained that an out-of-control executive branch has harmed the American people by hampering economic growth and that Congress needs to reassert itself to constrain this misbehavior. I disagree with both the diagnosis of the illness and the cure. My focus in this essay is regulatory policy. I do not deal with foreign policy, war-making, or homeland security. And, within the domain of regulatory policy, my focus is on environmental regulation, particularly regulation under the Clean Air Act, where the benefits and costs of regulation are highest and the vitriol of regulatory opponents has been most pronounced. The criticism of the regulatory state breaks down into five propositio...