The Constitution of the United States of America: Analysis and Interpretation of the Constitution

The Constitution of the United States of America

Analysis and Interpretation of the Constitution

Includes 2010 Supplement: Analysis of Cases Decided by the Supreme Court of the United States to June 29, 2010.


The Constitution with Annotations

Amendments to the Constitution

State Constitutional and Statutory Provisions and Municipal Ordinances Held Unconstitutional or Held to Be Preempted by Federal Law

Three separate lists of Supreme Court decisions appear below: part I lists cases holding state constitutional or statutory provisions unconstitutional, part II lists cases holding local laws unconstitutional, and part III lists cases holding that state or local laws are preempted by federal law. Each case is briefly summarized, and the votes of Justices are indicated unless the Court's decision was unanimous. Previous editions contained only two lists, one for cases holding state laws unconstitutional or preempted by federal law, and one for unconstitutional or preempted local laws. The 2002 edition adds the third category because of the different nature of preemption cases. State or local laws held to be preempted by federal law are void not due to repugnancy with any provision of the Constitution, but rather due to conflict with a federal statute or treaty, and through operation of the Supremacy Clause. Preemption cases formerly listed in one of the first two categories have been moved to the third. A few cases with multiple holdings are listed in more than one category.

Prepared by the Congressional Research Service, Library of Congress. Editor-in-Chief: Kenneth R. Thomas. Managing Editor: Larry M. Eig. Editor Emeritus: Johnny H. Killian.

Last modified: October 22, 2012