This book examines how the US Constitution acts as an international treaty in the federal courts.

Introduction; Part I. United States Courts as International Courts: 1. Final judicial review authority of federal and other international courts; 2. The fallacy of federal judicial activism in light of international law's non liquet prohibition principle; Part II. International Law: 3. The positive law of nations and its interpretive principles; 4. The natural law of nations; Part III. United States Law as International Law: 5. Article III, international legal interpretation; 6. Extra-Article III, international legal interpretation; 7. The General Liberal Construction Rule: extending Lynham to other Article III and Extra-Article III international law; Conclusion.