What do you know about US politics?
Political power in the United States is based on the Constitution of 1787, which established a federal republic with a presidential system.
The federal government is divided into three branches: the executive, headed by the president; the legislative, composed of the Congress (Senate and House of Representatives); and the judicial, consisting of the Supreme Court and other courts.
Each branch has specific functions and checks and balances over the others. The federal government also shares powers with the governments of the 50 states that form the Union, each with its own constitution, governor and legislature.

Branches of the United States

LEGISLATIVE BRANCH
The United States Congress is made up of the House of Representatives and the Senate. Congress meets at the United States Capitol in Washington, D.C.

EXECUTIVE BRANCH
Consists of the President, his or her advisors and various departments and agencies. This branch is responsible for enforcing the laws of the land.

JUDICIAL BRANCH
The Supreme Court of the United States is the highest court in the land and the only part of the federal judiciary specifically required by the Constitution.
Main political parties
The main political parties of US are the Democratic Party and the Republican Party, which dominate the national political scene for more than a century.
Presidential elections are held every four years through an indirect voting system by an electoral college.
Citizens of the United States who are 18 years or older, with some exceptions, have the right to vote.

Third parties
1- Libertarian Party: Recognized in 39 states.
2- Green Party: Recognized in 27 states.
3- Constitution Party: Recognized in 15 states.