What is Politics of the United States?
[[File:Political System of the United States.svg|thumb|350px|Political system of the United States under the [[United States Constitution]]]] The '''United States''' is a [[Federal republic|federal]] [[constitutional republic]], in which the [[President of the United States]] (the [[head of state]] and [[head of government]]), [[United States Congress|Congress]], and [[United States federal courts|judiciary]] share [[Separation of powers|powers]] reserved to the national government, and the [[Federal government of the United States|federal government]] shares [[sovereignty]] with the [[U.S. state|state]] governments.<ref>{{cite book|author=Samuel P. Huntington|title=American Politics: The Promise of Disharmony|url=https://books.google.com/books?id=2W1Qd0VCmhMC&pg=PA21|year=1981|publisher=Harvard University Press|pages=21–27}}</ref> The [[Constitution of the United States]] provides for a [[separation of powers]] among three branches. The [[Executive (government)|executive branch]] is mostly about the President and is independent of the legislature. Legislative power is in the two chambers of [[Congress]], the [[United States Senate|Senate]] and the [[United States House of Representatives|House of Representatives]]. The judicial branch (or judiciary), made of the [[United States Supreme Court|Supreme Court]] and lower federal courts, focuses on the [[Judiciary|judicial power]] (or judiciary). The judiciary's main focus is to interpret the meaning of the [[United States Constitution]] and [[Law of the United States|federal laws]] and rules. This includes solving problems between the executive and legislative branches. ==Political parties== {{main|Political parties in the United States}} Two [[political party|political parties]], the [[Democratic Party (United States)|Democratic Party]] and the [[Republican Party (United States)|Republican Party]] have been the main participants in American politics since the [[American Civil War]]. There are also [[List of political parties in the United States|smaller parties]