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  1. Há 2 dias · The United States is a constitutional federal republic, in which the president (the head of state and head of government), Congress, and judiciary share powers reserved to the national government, and the federal government shares sovereignty with the state governments.

  2. Há 16 horas · Composed of three branches, all headquartered in Washington, D.C., the federal government is the national government of the United States. It is regulated by a strong system of checks and balances.

  3. Há 1 dia · The Constitution of the United States is the supreme law of the United States. [3] It superseded the Articles of Confederation, the nation's first constitution, on March 4, 1789. Originally including seven articles, the Constitution delineates the national frame and constrains the powers of the federal government.

  4. Há 6 dias · Constitution of the United States of America, the fundamental law of the U.S. federal system of government and a landmark document of the Western world. The oldest written national constitution in use, the Constitution defines the principal organs of government and their jurisdictions and the basic rights of citizens.

    • The Editors of Encyclopaedia Britannica
  5. 10 de mai. de 2024 · United States government. Also known as: president of the United States of America. Written by. Forrest McDonald. Distinguished Research Professor of History, University of Alabama, Tuscaloosa. Author of The American Presidency: An Intellectual History and Novus Ordo Seclorum: The Intellectual Origins of... Forrest McDonald,