Since the New Deal era, the bulk of the functioning US government is the administrative state — think the acronym soup of agencies like the EPA, FCC, FTC, FDA, and so on. Even when Capitol Hill is not mired in deep dysfunction, the speed at which Congress and the courts operate no longer seems suitable for modern life. Both industry and ordinary people look to the administrative state, rather than legislators, for an immediate answer to their problems. And since 1984, the administrative state largely ran on one Supreme Court precedent: Chevron USA, Inc. v. Natural Resources Defense Council (NRDC).
That decision has now been overturned. Admin law is not always interesting, but the simple fact is when it comes to the day-to-day, agencies...