Congress develops, proposes, ratifies bills, and passes laws. The Senate has 100 members, and the House has 435 members. Senators serve for a term of six years and must be American citizens who have lived in the United States for no less than nine years. The House of Representatives has a term of two years, and the person must also have lived in the United States for no less than seven years.
A state Senator must be at least 30 years old, while a member of the House of Representatives must be no younger than 25 years old. The Senate is called the upper chamber the lower chamber is the House of Representatives.