What are the two parts of the U.S. Congress?

Why This Matters

This question asks you to name the two parts of the U.S. Congress. The answer is the Senate and the House of Representatives. The USCIS interviewer asks this because Congress is the most important lawmaking body in the country, and you should know how it is organized.

The Founders created two separate chambers of Congress as a compromise during the Constitutional Convention. Larger states wanted representation based on population, more people should mean more votes. Smaller states wanted equal representation, every state should have the same voice regardless of size. The solution was to create two chambers, each using a different method.

The Senate gives every state equal representation. Each state has exactly two Senators, for a total of one hundred. The House of Representatives gives states representation based on population. States with more people get more Representatives, while states with fewer people get fewer. Together, these two chambers balance the interests of large and small states. Every federal law must pass both the Senate and the House before it can become law, which means both small states and large states must agree.

Key Facts

• The two parts of Congress are the Senate and the House of Representatives
• The Senate has 100 members, two from each of the 50 states
• The House of Representatives has 435 members, divided among the states based on population
• This two-chamber system is called a bicameral legislature
• The compromise that created this system is known as the Great Compromise or Connecticut Compromise of 1787

Common Mistakes

• Saying "the Democrats and Republicans", these are political parties, not parts of Congress
• Naming the executive or judicial branch as part of Congress, Congress is only the legislative branch
• Saying "the House and the Senate" but forgetting the full name "House of Representatives", using the short form "the House" is generally accepted, but knowing the full name is better

Study Tip

Think of Congress as a building with two floors. The upper floor is the Senate, where every state has an equal say. The lower floor is the House of Representatives, where states with more people get more seats. Both floors must agree before any law can pass through the building. Senate and House, two parts, one Congress.