The United States is a constitutional democracy, a type of government
characterized by limitations on government power spelled out in a written
constitution. Written in 1787, the U.S. Constitution is both the oldest and shortest
written constitution in the world. It serves as the supreme law of the United
States.
The Constitution outlines a federal government with three separate branches:
the legislative branch (Congress), the executive branch (the presidency), and the
judicial branch (the courts). Over time, however, other key elements of government
have developed and become just as important, such as the federal bureaucracy,
political parties, interest groups, the media, and electoral campaigns. We will
cover these components in detail in upcoming chapters.
The Legislative Branch
Congress is the legislative branch of the federal government and is
responsible for creating laws. Congress consists of two chambers, an upper
chamber called the Senate and a lower chamber called the House of
Representatives. Congress has the sole authority to make laws, levy taxes,
declare war, and print money, among other powers. Congress also controls the
federal budget.
The Executive Branch
The presidency is the executive branch of the federal government. The
president is elected every four years and is responsible for enforcing the laws
that Congress makes. The president is also the commander-in-chief of the armed
forces and has the power to conduct foreign relations.
The Judicial Branch
The federal courts make up the judicial branch of the federal government,
which consists of regional circuit courts, appeals courts, and the Supreme
Court. The Supreme Court is the highest legal authority in the country and has
assumed the power of judicial review to decide the legality of the laws Congress
makes.
The Bureaucracy
The term bureaucracy refers to the various departments and agencies of the
executive branch that help the president carry out his or her duties. There are
fifteen departments within the executive bureaucratic branch, including the
Department of State, the Department of Labor, the Department of Homeland
Security, and the Department of Education. Each of these departments is also
responsible for a number of small government agencies, such as the Federal
Bureau of Investigation, the Central Intelligence Agency, and the Food and Drug
Administration.