Due to a special event taking place in the U.S. Capitol on Thursday, September 18, there will be no tours of the U.S. Capitol that day until approximately noon. The Capitol Visitor Center will remain open during this time, and guided tours in the Capitol Visitor Center will be available.

About Congress

About Congress: Joint Session

Through legislative debate and compromise, the U.S. Congress makes laws that influence our daily lives. It holds hearings to inform the legislative process, conducts investigations to oversee the executive branch, and serves as the voice of the people and the states in the federal government.

What Congress Does

Congress is the legislative branch of the federal government that represents the American people and makes the nation's laws. It shares power with the executive branch, led by the president, and the judicial branch, whose highest body is the Supreme Court of the United States. Of the three branches of government, Congress is the only one elected directly by the people.

Article I—the longest article of the Constitution—describes congressional powers. Congress has the power to:

  • Make laws
  • Declare war
  • Raise and provide public money and oversee its proper expenditure
  • Impeach and try federal officers
  • Approve presidential appointments
  • Approve treaties negotiated by the executive branch
  • Oversight and investigations
Two Bodies, One Branch

All legislative Powers herein granted shall be vested in a Congress of the United States, which shall consist of a Senate and House of Representatives.

— The Constitution, Article I Section I - The Legislature

Signing of the Constitution; Howard Chandler Christy, 1940; House Wing, east stairway
Signing of the Constitution; Howard Chandler Christy, 1940; House Wing, east stairway
Congress is divided into two institutions: the House of Representatives and the Senate. The two houses of Congress have equal but unique roles in the federal government. While they share legislative responsibilities, each house also has special constitutional duties and powers.

To balance the interests of both the small and large states, the Framers of the Constitution divided the power of Congress between the two houses. Every state has an equal voice in the Senate, while representation in the House of Representatives is based on the size of each state’s population.

The Connecticut Compromise by Bradley Stevens depicts Roger Sherman and Oliver Ellsworth
The Connecticut Compromise; by Bradley Stevens ; Oil on canvas, 2006; U.S. Senate Collection
Known as the Great (or Connecticut) Compromise, this plan for representation in Congress was introduced by Connecticut delegates to the 1787 Constitutional Convention, Roger Sherman and Oliver Ellsworth.

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