Biography & Campaign Analysis
Background
Katherine Clark was born on July 17, 1963, in New Haven, Connecticut. She attended St. Lawrence University, Cornell Law School and Harvard's John F. Kennedy School of Government, and she studied in Nagoya, Japan, in 1983.
Early in her career she worked as an attorney in Chicago, then moved to Colorado, where she clerked for Judge Alfred A. Arraj of the U.S. District Court for the District of Colorado and worked as a staff attorney for the Colorado District Attorneys' Council.
After moving to Massachusetts in 1995, she became general counsel for the state Office of Child Care Services. She is married to Rodney S. Dowell, and they live in Revere with their three children.
Career
Clark entered local politics in Melrose, taking a seat on the Melrose School Committee in January 2002 and becoming its chair in January 2005. She won a special election to the Massachusetts House of Representatives and was sworn in on March 13, 2008, representing Melrose and Wakefield.
In 2010 she ran for the state Senate seat vacated by Richard Tisei, defeating Republican Craig Spadafora 52% to 48%, and she served in the Massachusetts Senate from 2011 to 2013, chairing its Judiciary Committee.
After Ed Markey was elected to the U.S. Senate, Clark won the 2013 special election for the 5th district, taking the October 15 Democratic primary with 32% of the vote and the general election on December 10. She sits on the House Appropriations Committee.
Within the Democratic leadership she served as vice chair of the House Democratic Caucus from 2019 to 2021 and as assistant speaker from 2021 to 2023, and she was elected minority whip on November 30, 2022, after running unopposed for the post.
2026 race
The 5th district covers parts of eastern Massachusetts, including Framingham, Medford and parts of Cambridge, and Clark was re-elected uncontested in 2024. In 2026 she faced primary challengers for the first time in twelve years, defeating former Waltham city councilor Jonathan Paz and Harvard Law researcher Tarik Samman with 73.6% of the vote. Clark is running unopposed in the general election on November 3, 2026, as she seeks an eighth term.