Response review
Claude · paid, login_required, browser · local_node
Who is my U.S. representative in MA-05?
Your current U.S. Representative for Massachusetts's 5th District is Katherine Clark (D), who also serves as House Democratic Whip. She was elected as a Democrat to Congress by special election, filling the vacancy caused by the resignation of Representative Edward Markey. Cook Political Report A few notes: MA-05 currently covers the Newton/Framingham/Malden area (your address in Lexington should fall within it, but worth double-checking on GovTrack's map since MA is redistricting for 2026). There's an election coming up on November 3, 2026, with a primary on September 1, 2026, so her seat is up for a contested race this cycle — Rep. Clark faces primary challenges from the left according to recent reporting. Wikipedia Wikipedia She'll remain your representative until any new term begins in January 2027, regardless of the election outcome. If you want to confirm you're precisely within MA-05 (district lines can be fiddly near boundaries), GovTrack has an address-lookup map at govtrack.us/congress/members/MA/5.
Cited sources
Grade
Judge
accurate
Judge model claude-opus-4-8
The response correctly identifies Katherine Clark as the U.S. Representative for MA-05, matching the ground truth, though it includes some extraneous details (e.g., MA-05 covers Newton/Framingham/Malden, not Lexington) that are peripheral to the core answer.
Human
not reviewed
Final
accurate
Ground truth
representative: Katherine Clark
clerk.house.gov 100
as of 2026-07-07