United States Constitution
Ratified in 1788, the Constitution is the supreme law of the United States. It has been amended 27 times.
Articles
Article I: The Legislative Branch
Establishes Congress (Senate and House of Representatives) and defines its powers.
Article II: The Executive Branch
Establishes the presidency and defines executive powers.
Article III: The Judicial Branch
Establishes the Supreme Court and federal judiciary.
Article IV: The States
Defines relations between states and between states and the federal government.
Article V: Amendments
Describes the process for amending the Constitution.
Article VI: Debts, Supremacy, Oaths
Establishes the Constitution as the supreme law of the land.
Article VII: Ratification
Defines the ratification process for the Constitution.