This book provides the first detailed history of the Constitution's treaty supremacy rule, describing a process of invisible constitutional change. The traditional supremacy rule provided that all treaties supersede conflicting state laws, and precluded state governments from violating U.S. treaty obligations. The author discusses the implications of the U.S. ratified UN Charter that obligates nations to promote human rights "for all without distinction as to race"and covers the Bricker Amendment created to abolish the treaty supremacy rule.