The United States of America (United States), is a country primarily located in North America. It is a federal union of 50 states and a federal capital district, Washington, D.C.
The United States; a federal constitutional republic, in which the President is head of state and government. Congress and judiciary share powers reserved to the national government. The federal government shares sovereignty with the state governments. The Federal Government is composed of three distinct branches, namely: legislative, executive, and judicial, whose powers are vested by the U.S. Constitution in the Congress, the President, and the Federal courts, respectively.
Legislative power is in the two chambers of Congress, the Senate and the House of Representatives.