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  1. Branches of the U.S. government - USAGov

  2. Federal government of the United States - Wikipedia

  3. Politics of the United States - Wikipedia

  4. Our Government - The White House

  5. US Political System Explained | Political Science

  6. How does the US political system work? - BBC Bitesize

  7. The Basic Structure of the U.S. Federal Government - ThoughtCo

  8. Politics of the United States - Simple English Wikipedia, the free ...

  9. Federal government of the United States - Simple English Wikipedia

  10. Branches of Government - house.gov