This is a complete list of members of the United States House of Representatives during the 118th United States Congress, which runs from January 3, 2023, through January 3, 2025, ordered by seniority. [lower-alpha 1]
United States senators are conventionally ranked by the length of their tenure in the Senate. The senator in each U.S. state with the longer time in office is known as the senior senator; the other is the junior senator. This convention has no official standing, though seniority confers several benefits, including preference in the choice of committee assignments and physical offices. When senators have been in office for the same length of time, a number of tiebreakers, including previous offices held, are used to determine seniority. Per traditions, the longest serving senator of the majority party is named president pro tempore of the Senate, the second-highest office in the Senate and the third in the line of succession to the presidency of the United States.
This is an incomplete list of lists pertaining to the United States Congress.
This is a complete list of current members of the United States House of Representatives based on seniority. For the most part, representatives are ranked by the beginning of their terms in office. Representatives whose terms begin the same day are ranked alphabetically by last name.