Congress is the legislative branch of the U.S. federal government, divided into the House of Representatives and the Senate. It holds the power to make laws, approve the federal budget, and serve as a critical check on the presidency. Understanding how Congress works—from its lawmaking procedures to its constitutional powers—is essential to understanding American democracy.

Congressional Powers and Checks on Presidential Authority

Congress wields enormous constitutional power over American life. It controls America’s wallet through the power of the purse, and can fire a president through impeachment. Congress also holds the authority to declare war, outlined in the Authorization for Use of Military Force. The Speech or Debate Clause protects members from legal liability for statements made in their official capacity. Congress also grants special honors, including the Congressional Gold Medal.

Legislative Procedures and Budget Authority

The House and Senate shape American lawmaking differently. Congress funds the federal government through the appropriations process. When Congress cannot agree on spending, three congressional procedures can end a shutdown quickly. Citizens can engage directly by learning how to contact their member of Congress.

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Dive Deeper Into Congress

All Articles on Congress

Congress Handed Presidents Tariff Power Decades Ago. The Court Just Took It Back.

Rick Woldenberg paid millions in legal fees to sue the federal government. He described his willingness to put his name…

Speech or Debate Clause: The Constitutional Shield for Congressional Speech

On February 10, 2026, twenty-three ordinary citizens sitting in a federal courthouse in Washington, D.C. did something that a former…

Can Congress Block Presidential Tariffs? The Legislative Tools That Exist.

The gap between what Congress can do and what Congress does tells you almost everything you need to know about…

If the Supreme Court Sides with Trump, Congress Loses Its Oldest Power

When the First Congress convened in 1789, it didn't start with grand speeches about democracy or the rights of man.…

How Congress Could Reclaim Tariff Authority—And Why It Probably Won’t

President Trump imposed broad tariffs in 2025 using emergency powers. The Supreme Court will soon decide whether he exceeded his…

Does Congress Have Power to Block Treaty Withdrawals? The Legal Battle Ahead

On February 4, 2026, President Trump signed a directive ordering the United States to exit sixty-six international organizations and treaties…

Why Speaker Johnson Can Only Lose One Vote—And How That Broke Congress

Speaker Mike Johnson needs 218 votes to pass anything. One member with the flu, one at a funeral, one facing…

Three Congressional Procedures That Can End a Shutdown Quickly

The federal government shut down at midnight Saturday. Hundreds of thousands of federal workers face furloughs, agencies are running with…