In a post-Chevron world, administrative law doesn’t halt—it clarifies. The American Administrative State After Chevron’s Demise: A Constitutional, Text-and-History-Grounded Analysis offers a comprehensive, evergreen roadmap for governing through statutes rather than slogans. Blending doctrine with craft, the book shows how courts, agencies, and Congress can operate effectively under independent judicial review: authority first; channels respected; text, structure, and history for law; evidence and explanation for fact and policy; and remedies calibrated to consequences. Across twenty chapters—from the APA’s “operating system” and Skidmore’s power to persuade, to rulemaking, adjudication, remedies, justiciability, and sector chapters (environment & energy; health, food & drugs; labor & safety; finance, trade & technology)—the book translates constitutional principles into repeatable practices: map every operative requirement to enacted text, build transparent records, separate law from discretion, and treat guidance as guidance. It closes with Congress’s drafting playbook, federalism’s architecture, and a leadership ethic that turns expertise into reasons the public can see and courts can test. Clear, practical, and rigorously method-driven, this volume is equally suited for judges, agency lawyers, Hill staff, practitioners, and scholars who need durable answers—not transient deference—to the hardest problems of modern governance.