The head of the legislative branch of the United States is the Speaker of the House of Representatives. As of the start of the 119th United States Congress in January 2025, the Speaker is Republican Mike Johnson of Louisiana. He was re-elected on January 3, 2025, after a closely contested vote

. The legislative branch, known as Congress, consists of two chambers: the House of Representatives and the Senate. The Speaker presides over the House of Representatives and is the chamber's presiding officer. The Speaker is elected by the members of the House and is third in the presidential line of succession

. In summary:

• The legislative branch is headed by the Speaker of the House.
• The current Speaker (as of January 2025) is Mike Johnson, a Republican from Louisiana.
• The Speaker is elected by the House members and leads the House of Representatives, one of the two chambers of Congress