Member brief No. MA-05
Reviewed October 31, 2026
MA-05 · Massachusetts
Katherine M. Clark
Democrat. Harris won Massachusetts in 2024. Not flagged for 2032 redistricting risk.
- Age on Election Day 2028
- 65
- Born July 17, 1963.
- Lean
- D+24
- Solidly Democratic. Cook PVI, 2026 lines.
- In the House since
- 2013
- Served since December 12, 2013.
- Cash on hand
- $1.23M
- $1,229,548. Reporting period ended October 14, 2026
The 2026 race
- November 3, 2026
- Re-elected
Called by NBC News on November 4, 2026.
- Primary
- Won with 73.6%
Sept. 1. Next: Jonathan Paz, 19.7%, and one other.
Endorsements, 2026
Endorsed: Hakeem Jeffries.
None on record: Justice Democrats, Working Families Party, Congressional Progressive Caucus PAC, Democratic Socialists of America.
What a race here costs
TV: Boston, MA–Manchester, 2.58 million homes. The district is 11.4% of the market.
2026 primary: $2.2M spent, $18.93 a vote
2024 general: $551K spent, $1.89 a vote
In the House, 119th Congress
- House Democratic Whip, 119th Congress
No committee assignments listed.
General-election outcomes
- 2024 vote share
- 98.22%
- Victory margin
- Not comparable
- Harris, 2024
- 71.31% · +45.17 pts
No named opponent; no meaningful presidential comparison.
2024 election districts. Valid votes; margin over the runner-up. Runner-up: All Others. Returns · Harris baseline · Method. Reviewed November 5, 2026.
Money, past cycles
| Cycle | Raised | From individuals | Cash at year end |
|---|---|---|---|
| 2020 | $1.8M | 49% | $1.3M |
| 2022 | $2.2M | 43% | $1.1M |
| 2024 | $5.0M | 38% | $1.3M |
Scorecards and grades
- Conservative average, out of 100
- 8.5
- Progressive average, out of 100
- 97.5 (LCV 97, Progressive Punch 98, Stop Corruption Now none)
- IAP Action score, immigration
- -104, rank 283 of 431
- Gun Owners of America grade, 2024
- F
Read October 31, 2026 from the member’s page on heritageaction.com, clubforgrowth.org, tpaction.com, gopscorecard.limitedgov.org.