Katherine Clark
Incumbent representative for MA-5. Voting record, ideology and biography →
Katherine Clark vs. Republican nominee TBD. Today's article: every forecast for this race →
Margin from the district's presidential lean on its 2026 lines, one fitted intercept and the national environment as a uniform swing; the win probability adds a decaying incumbency premium (Democratic incumbent running). No district poll is blended in.
Incumbent representative for MA-5. Voting record, ideology and biography →
The primary may be unresolved, or the source does not yet list one clear nominee.
What each candidate's own campaign committees reported for the 2025–26 cycle; outside spending by PACs and parties is not included. Industries are classified from donors' reported employers. The House forecast's win probability reads the two nominees' shares of individual contributions shown here, a small term that never moves the predicted margin. Data: GovMoneyGraph, based on FEC records.
We have not yet ingested a district rating from these independent forecasters for MA-5; links go to their current national House ratings. Missing is shown as missing—not converted into a probability.
Every election in Massachusetts's 5th district we hold a result for. District numbers are reused across redistricting, so older rows may cover different ground than the seat does today.

Rep. Katherine Clark of Massachusetts officially announced her bid for majority leader in a letter to colleagues Thursday. Clark, currently the No. 2 to Minority Leader Hakeem Jeffries, is widely considered a shoo-in among her colleagues. She is currently uno…

NPR's Ailsa Chang speaks with House Democratic Whip Katherine Clark of Massachusetts about tonight's midterm elections.

Semafor: “Next month, House Minority Whip Katherine Clark is planning a whirlwind tour of districts in California, Michigan, Ohio, New York, Florida, Massachusetts, Nebraska, and Pennsylvania, according to a spokesperson, a sprint that will bring her stops to…

Congressional leaders are hitting the trail in the midterms’ final stretch. Next month, House Minority Whip Katherine Clark is planning a whirlwind tour of districts in California, Michigan, Ohio, New York, Florida, Massachusetts, Nebraska, and Pennsylvania, …
Candidate field source: 2026 House election roster ↗