A Government Built in Layers

The United States divides power twice: among branches of government and among levels of government. The result is a political system in which authority is rarely located in one place.

The Federal Triangle

At the national level, Congress writes laws, the president leads the executive branch, and the judiciary interprets the Constitution and federal law. Congress itself has two chambers: the House of Representatives and the Senate. The Supreme Court and lower federal courts can resolve disputes involving the other branches.

This separation is designed to prevent any single institution from ruling alone. It also creates friction: legislation, appointments, budgets, and court decisions often become battles over who has the final word.

States as Political Laboratories

Each state has its own constitution, governor, legislature, and courts. States may legislate on subjects not granted to the federal government or denied to the states. Education, family law, contract law, and most crimes largely fall within state authority.

State systems resemble the federal model, but details vary. Nebraska is the only state with a unicameral legislature; most other states have a Senate and a lower chamber.

The Government Beneath the State

Counties, townships, municipalities, school districts, and special districts deliver much of daily life. In 2022, the country had more than 90,000 local governments. They provide police and fire protection, schools, roads, sanitation, transit, and housing services.

Some places even blur familiar boundaries. New York City’s five boroughs correspond to counties, while cities such as Denver and Philadelphia combine city and county governments.

The memorable paradox is simple: American government is strongest not when power is centralized, but when countless institutions compete to exercise it.