Unlike the White House, anywhere US presidents can assist lone two terms, members of Congress have no term limits.
In the US Senate, several members have served for decades.
Senators are additionally getting older, on average. In the 119th Congress, which began in 2025, the median age of US senators was 64.
That marks an addition from the 113th Congress in 2013, whenever the median age in the Senate was 61, per Ballotpedia.
Of the 10 longest-serving senators, two are operating for reelection in the 2026 midterm elections.
Here are the current senators who have held agency the longest — and how many years they've served.
Sen. Maria Cantwell — 25 years
Cantwell, a 68-year-old Democrat from Washington, has served as a US legislator since January 3, 2001. She won her fifth term in 2024 and volition be up for reelection in 2030.
Sen. Chuck Schumer — 27 years
Schumer, a Democrat from New York, was sworn in on January 3, 1999.
Schumer, 75, volition be up for reelection in 2028.
Sen. Mike Crapo — 27 years
Crapo, 75, is a Republican who has represented Idaho in the Senate since January 3, 1999. He volition be up for reelection in 2028.
Sen. Dick Durbin — 29 years
A Democrat from Illinois, Durbin was sworn in as a US legislator on January 3, 1997. At 81, he is not seeking reelection and volition quit at the end of his term.
Sen. Jack Reed — 29 years
Reed's period in the Senate began on January 3, 1997. The 76-year-old Democrat from Rhode Island is operating for reelection in the 2026 midterms.
Sen. Susan Collins — 29 years
Collins, 73, is operating for reelection in a high-profile competition against Democratic challenger Troy Jackson in the 2026 midterms.
A Republican from Maine, she has served in the Senate since January 3, 1997.
Sen. Ron Wyden — 30 years
Wyden, a Democrat from Oregon, was sworn in on February 5, 1996, following the resignation of erstwhile Oregon Sen. Bob Packwood.
He is 77 years old and plans to run for reelection in 2028.
Sen. Patty Murray — 33 years
Murray, a Democrat from Washington, is 76 years old and has been a associate of the Senate since January 3, 1993.
She plans to run for reelection in 2028.
Sen. Mitch McConnell — 41 years
McConnell, a Republican representing Kentucky, took agency on January 3, 1985. At 84, he has informed a figure of health challenges in latest years, including a nearly four-week-long hospitalization that began in June following emergency responders were dispatched to his home.
McConnell is not seeking reelection in 2026 and volition quit whenever his term ends.
Sen. Chuck Grassley — 45 years
Grassley, a Republican from Iowa, is additionally the oldest sitting associate of the Senate at 93. He has served as a legislator since January 3, 1981.
Grassley volition be up for reelection in 2028, but he told reporters in October that he has not decided if he volition run again.
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