The U.S. has granted the legislative, executive, and judicial departments of the federal government with specific authority. Congress, the President, and the Federal courts all have jurisdiction over the Constitution.
A subfield of the academic discipline of political science is American politics (or American government). Although not solely, it is mostly investigated by scientists in the United States.
Currently, the two major parties in Congress are the Democratic and Republican. Learn more about the differences between political parties in the US Senate.
A politician is someone who participates in party politics or who holds or is running for public office. Legislation is proposed, supported, rejected, and created by politicians to rule the nation and, by implication, its citizens. A politician, broadly defined, is somebody who aspires to political authority in a government.
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