This groundbreaking coursebook introduces students to the modern statutory and regulatory state. Authored by one of the founders of the legislation field and two leading scholars of Congress, it explores the regulatory state from the perspectives of Congress and agencies as well as judges (the traditional focus). The materials survey the empirical realities and rules under which Congress enacts statutes, the President and agencies implement them, and courts review agencies and interpret statutes. Importantly, this book examines the constitutional and functional structures within which Congress, the President, and the Supreme Court interact, making the book accessible to first-year students, with advanced options for upper-level courses in legislation and administrative law. The coursebook's unique, real-world focus on both the legislative process and the linkages between Congress and agencies sets it apart from more traditional casebooks and gives instructors useful materials for teaching the next generation of legislation, legislation-regulation, statutory interpretation, and administrative law courses.