The United States Congress is made up of the House of Representatives and the Senate. The Legislative Branch, established by Article I of the Constitution, consists of these two chambers, which together form the United States Congress. Congress is a bicameral legislature divided into two equal institutions: the House of Representatives and the Senate.

The House of Representatives is made up of 435 elected members, divided among the 50 states in proportion to their total population. In addition, there are 6 non-voting members, representing the District of Columbia, the Commonwealth of Puerto Rico, and four other territories of the United States: American Samoa, Guam, the U.S. Virgin Islands, and the Commonwealth of Northern Mariana Islands. The presiding officer of the chamber is the Speaker of the House, elected by the Representatives.

The Senate has 100 members, with each state represented by two senators. The U.S. territories and the District of Columbia are not represented in the Senate.

Each state sends elected representatives and senators to Congress. Although the House and the Senate are structured differently and have their own roles and responsibilities, they work together to pass legislation. No bill can become a law without passing both houses of Congress.

In summary, Congress is made up of two chambers: the House of Representatives and the Senate. The House of Representatives has 435 elected members and 6 non-voting members, while the Senate has 100 members. Each state sends elected representatives and senators to Congress, and both chambers work together to pass legislation.