"The broad topic of constitutional law deals with the interpretation and implementation of the United States Constitution. As the Constitution is the foundation of the United States, constitutional law deals with some of the fundamental relationships within our society. This includes relationships among the states, the states and the federal government, the three branches (executive, legislative, judicial) of the federal government, and the rights of the individual in relation to both federal and state government. The area of judicial review is an important subject within Constitutional Law. The Supreme Court has played a crucial role in interpreting the Constitution. Consequently, study of Constitutional Law focuses heavily on Supreme Court rulings.
While the topic also covers the interpretation and implementation of state constitutions, without qualification it is usually understood as referring to the Federal Constitution." Wex
Constitution of the United States of America (1787). Bill of Rights Institute.
U.S. Constitution Annotated. Legal Information Institute. Cornell University. This hypertext edition of the U.S. Constitution links to Supreme Court case opinions, the U.S. Code, and the Code of Federal Regulations.
The Founders' Constitution. University of Chicago. A comprehensive anthology of original historical documents relating to the legal and historical context of the U.S. Constitution and Bill of Rights. It is a joint venture of the University of Chicago and the Liberty Fund.
The Federalist Papers. Congress.gov. A collection of 85 articles and essays written by Alexander Hamilton, James Madison, and John Jay under the pseudonym "Publius" to promote the ratification of the United States Constitution.
The NBER/Maryland State Constitutions Project. This site is a portal to the texts of the state constitutions of the United States. The user can display the text of a constitution or search by state, article number, or section number.