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 …

The United States Senate consists of 100 members, two from each of the 50 states. This list includes all senators serving in the 119th United States Congress.

Seniority in the United States Senate is the value of a senator based on his/her service. There are two senators per state. The one senator that served more years is called the Senior senator. …

This is a complete list of United States senators during the 118th United States Congress listed by seniority, from January 3, 2023, to January 3, 2025. It is a historical listing and will contain …

This is a complete list of United States senators during the 117th United States Congress listed by seniority, from January 3, 2021, to January 3, 2023. It is a historical listing and will contain …

For senators who entered the Senate on the same day, several tie-breaking procedures determine seniority. In order of precedence, these factors are: previous Senate service, …

In the vice president's absence, the president pro tempore, who is traditionally the most senior member of the Senate's majority party, presides over the Senate, and more often by rule …

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 …

The practice of ranking senators based on length of service, known as seniority, developed during the institution's first half-century. In its earliest decades, the Senate struggled to find an …

Rebecca Latimer Felton (D-Georgia), the first female member of the United States Senate, who served for a single day in 1922. One woman (Barbara Mikulski) was reelected and four women …