Chuck Grassley has been in the United States Senate since 1975. So has Ed Markey. Fifty-one years. That's longer than most Americans have been alive, longer than the internet has existed, longer than a whole lot of the laws currently on the books that these same members keep voting to amend or ignore. This isn't a one-off. It's a pattern baked into how Congress works, and it's exactly what Too Damn Old exists to track. Today we're walking you through the five longest-serving members currently sitting in Congress, what the numbers actually say, and how to use this kind of data instead of just gawking at it.
Here are the five longest-tenured members of Congress serving right now, ranked by years in office. Chuck Grassley, Senate, Iowa, Republican: 51 years served, in office since 1975, currently age 92. Edward J. Markey, Senate, Massachusetts, Democrat: 51 years served, in office since 1975, currently age 80. Harold Rogers, House, Kentucky, Republican: 45 years served, in office since 1981, currently age 88. Steny H. Hoyer, House, Maryland, Democrat: 45 years served, in office since 1981, currently age 87. Ron Wyden, Senate, Oregon, Democrat: 45 years served, in office since 1981, currently age 77. Look at that list again. Two parties. Two chambers. All five clustered in that same narrow window of 1975 to 1981. Grassley and Markey both walked into Congress the same year Saigon fell. Rogers, Hoyer, and Wyden all arrived the year Ronald Reagan was first inaugurated. Every one of them has outlasted dozens of presidents' worth of political turnover, if you measure it in terms of how many presidential elections have come and gone since they were sworn in.
This is bigger than any one senator or any one seat. When you see the same five names anchoring the top of a tenure list decade after decade, it tells you something about the incentive structure of the institution itself: incumbency in Congress is sticky, and it gets stickier the longer someone holds on. Seniority buys committee chairmanships, name recognition, donor networks, and institutional muscle memory that a challenger, no matter how sharp, simply cannot match on day one. None of that is about the party of the person holding the seat. It's about a system that rewards staying, sometimes long past the point where experience is the most useful word for it. Here's how we want you to use this. Don't just clock the top five and move on. Look up your own state's delegation and your own district's representative. Compare their tenure to the national list. Is your senator closer to Ron Wyden's 45 years or closer to a freshman's two? Tenure alone doesn't tell you whether someone is doing a good job, but it does tell you how deeply entrenched they are in a system that was never built to produce 51-year careers. Use this data as a starting point for asking harder questions about who represents you and how long they've held that microphone.
The numbers here are straightforward and drawn directly from our live congressional dataset. Years served is counted from the year each member was first sworn into their current chamber through today, so Grassley and Markey's 51 years both trace back to 1975, and Rogers, Hoyer, and Wyden's 45 years trace back to 1981. Age reflects each member's current, present-day age, not their age at first election. We track House and Senate service separately, since a member who moved between chambers has their tenure counted for that specific chamber. Party and state are included as identifying information, not as a framing device. This isn't a list we curated by hand. It's a live ranking that updates as our underlying dataset does, which means the five names here today could shift as members retire, lose elections, or leave office for other reasons.
Five names are just the tip of it. Congress has 535 voting members, and every one of them has a start date, an age, and a tenure clock ticking whether anyone's watching or not. If you want to see how your own representatives stack up, or dig into the full methodology behind how we calculate tenure and age across the entire Congress, head to toodamnold.com/data. The data's there. What you do with it is up to you.