The federal government of the United States is the central United States governmental body, established by the United States Constitution. The federal government has three branches: the legislative, executive, and judiciary. Through a system of separation of powers and the system of "checks and balances," each of these branches has some authority to act on its own, some authority to regulate the other two branches, and has some of its own authority, in turn, regulated by the other branches. The policies of the federal government have a broad impact on both the domestic and foreign affairs of the United States. In addition, the powers of the federal government as a whole are limited by the Constitution, which, per the Tenth Amendment, gives all power not directed to the National government, to the State level. Read More.

The seat of the federal government is in the federal district of Washington, D.C.

Legistative Branch

The legislative branch of the federal government consists of the Congress, which is divided into two chambers -- the Senate and the House of Representatives. Each member of Congress is elected by the people of his or her state. The House of Representatives, with membership based on state populations, has 435 seats, while the Senate, with two members from each state, has 100 seats. Members of the House of Representatives are elected for two-year terms, and Senators are elected for six-year terms.

Executive (The Government)

In political science and constitutional law, the executive is the branch of government responsible for the day-to-day management of the state. In many countries, it is referred to simply as the government, but this usage can be confusing in an international context. The executive branch contains the head of government, who is the head of this branch. Under the doctrine of the separation of powers, the executive is not supposed to make laws (role of the legislature), nor to interpret them (role of the judiciary); rather, their purpose is to enforce them. Read More.

Judiciary

In law, the judiciary or judicial system is the system of courts which administer justice in the name of the sovereign or state, a mechanism for the resolution of disputes.

The term is also used to refer collectively to the judges, magistrates and other adjudicators who form the core of a judiciary, as well as the support personnel who keep the system running smoothly. Under the doctrine of the separation of powers, 'the judiciary is the branch of government primarily responsible for interpreting the law'[citation needed]. It construes the laws enacted by the legislature. Read More.