Katherine M. Clark
- Democratic · US Representative, Massachusetts District 5 · On the Nov 3 ballot for re-election
- Background
- State legislator · Prosecutor
- Raised
- $5.0M
- Cash on hand
- $1.2M
- Years in Congress
- 12
- Age
- 63
- Races
- Won 7 of 7
Spectrum
Centrist is the middle of the scale, not of Congress. How this works
By donors (CFscore, 2024 cycle)
Research estimate from Stanford DIME 4.0. Source
Method and limits
Published score −0.800 on a scale from −2.0 to 2.0, where 0 is the center. 4,114 donors. License: ODC-BY 1.0.
Places a candidate by who gave them money; candidates who share donors sit close together.
Reflects the donor network, not votes or views, and comes from past cycles, not a 2026 reading.
Now
US House, Massachusetts District 5 · Tue, Nov 3
Katherine M. Clark Democratic (inc.)
Career
| Year | Race | Result | Share | Lost to, or other round |
|---|---|---|---|---|
| 2024 | US House, MA-05 | Won | 98.2% | |
| 2022 | US House, MA-05 | Won · primary won 99.6% | 74% | |
| 2020 | US House, MA-05 | Won · primary won 99.4% | 74.3% | |
| 2018 | US House, MA-05 | Won · primary won 99.3% | 75.9% | |
| 2016 | US House, MA-05 | Won · primary won 98.5% | 98.6% | |
| 2014 | US House, MA-05 | Won | 98.3% | |
| 2013 | US House, MA-05 · special | Won | 65.8% |
Races in our results files. Other offices, earlier years and most primaries can be missing. A general that went to a runoff counts as neither a win nor a loss.
Money
FEC, through Oct 14, 2026Spent $5.1M · Debts owed $0
Where the money came from
- Individuals$1.3M
- PACs and other committees$2.1M
- Party committees$0
- Candidate’s own money$0
- Loans from the candidate$0
- Transfers from the candidate’s other committees$1.6M
As the campaign reported to the FEC through Oct 14, 2026. Bars compare these lines. Some money has no line here, so they may not add up to the total raised. Source: FEC candidate summary.
Committees giving to this campaign
381 committees reported giving $2.0M.
- National Association of Broadcasters PAC (NABPAC)PAC$10,100
- Carpenters Legislative Improvement Committee United Brotherhood of Carpenters and JoinersPAC$10,000
- Federation of American Hospitals PACPAC$10,000
- National Rural Electric Cooperative Association America's Electric Cooperatives PACPAC$10,000
- National Restaurant Association PAC (Restaurant PAC)PAC$10,000
Show 15 more
- Mortgage Bankers Association PAC (MORPAC)PAC$10,000
- National Association of Insurance and Financial Advisors Political Action CommPAC$10,000
- International Association of Sheet Metal, Air, Rail and Transportation Workers Political Action LeaguePAC$10,000
- America's Credit Unions PACPAC$10,000
- Laborers' International Union of North America (LIUNA) PACPAC$10,000
- Ncta - the Internet & Television Association PAC (NCTAPAC)PAC$10,000
- American Federation of State County & Municipal Employees P E O P L EPAC$10,000
- UBS Americas Inc. PAC (UBS PAC)PAC$10,000
- UA Union Plumbers & Pipefitters Vote! PAC (United Association of Journeymen and Apprentices of the Plumbing & Pipefitting Industry of the United States and Canada)PAC$10,000
- American Land Title Association Title Industry PAC (TIPAC)PAC$10,000
- Independent Insurance Agents & Brokers of America, Inc. PAC (INSURPAC)PAC$10,000
- American Association for Justice PAC (AAJ PAC)PAC$10,000
- American Federation of Teachers, AFL-CIO Committee on Political EducationPAC$10,000
- Engineers Political Education Committee (Epec)/International Union of Operating EngineersPAC$10,000
- Fluor Corporation PAC (Fluor PAC)PAC$10,000
The largest 20 are listed. Refunds the committees reported are taken out. Independent spending isn’t included. These figures come from the committees’ own reports, so they can differ from the campaign’s lines above, sometimes by a lot. Source: FEC committee-to-candidate file, dated Oct 25, 2026.
Reports through Oct 14, 2026.
How these are counted
Later filings are not in yet. Totals for the 2025 to 2026 cycle. Raised $5,026,058. Cash on hand $1,229,548. Spent $5,122,401. Debts owed $0. Individuals $1,262,871. PACs and other committees $2,107,007. Party committees $0. Candidate’s own money $0. Loans from the candidate $0. Other loans $0. Transfers from the candidate’s other committees $1,575,039. Main committee: Katherine Clark for Congress. No individual donor names are shown.
House votes
119th Congress, through Sept 16, 2026676 roll calls. Yea 293, Nay 378, Present 4, Not voting 0.
- Roll calls missed
- 0%
- Voted with own party when parties split
- 99.1%
How these are counted
Missed is Not Voting divided by every roll call the member was listed on, including quorum calls and procedural votes. It covers any absence, including illness and leave.
Party split: a roll call counts when the Democratic majority and the Republican majority voted opposite ways. That was 469 roll calls, and the member matched their own party on 465. We pick no votes ourselves.
Showing the newest 8 of 676
Sep 16, 2026 · House roll call 314
On Motion to Suspend the Rules and Pass · S 2403
Retire through Ownership Act
Vote: YeaPassed, 401 to 14
Sep 16, 2026 · House roll call 313
On Motion to Suspend the Rules and Pass, as Amended · H R 9497
Water Resources Development Act
Vote: YeaPassed, 415 to 9
Sep 16, 2026 · House roll call 312
On Motion to Suspend the Rules and Pass, as Amended · H R 9340
Ratepayer Protection Act
Vote: YeaPassed, 417 to 3
Sep 16, 2026 · House roll call 311
On Passage · H J RES 213
Providing for congressional disapproval under chapter 8 of title 5, United States Code, of the rule issued by the Environmental Protection Agency relating to the “California State Nonroad Engine Pollution Control Standards; Commercial Harbor Craft Regulations; Notice of Decision”
Vote: NayPassed, 214 to 208
Sep 16, 2026 · House roll call 310
On Passage · H R 10326
PROOF Act
Vote: NayPassed, 217 to 207
Sep 16, 2026 · House roll call 309
On Passage · H R 9576
National Fraud Enforcement Division Act
Vote: YeaPassed, 352 to 72
Sep 16, 2026 · House roll call 308
On Motion to Concur in the Senate Amendments · H R 5334
An Act to amend the Internal Revenue Code of 1986 to allow early childhood educators to take the educator expense deduction, and for other purposes
Vote: NayPassed, 262 to 159
Sep 15, 2026 · House roll call 307
On Agreeing to the Resolution · H CON RES 93
Directing the President, pursuant to section 5(c) of the War Powers Resolution, to remove United States Armed Forces from hostilities with Iran
Vote: YeaPassed, 220 to 204
Legislation
119th Congress, congress.gov, as of Oct 30, 2026Sponsored 3 bills and 0 resolutions. Cosponsored 28 bills and 9 resolutions. Amendments are not counted.
Latest bills Katherine M. Clark sponsored
More about Katherine M. Clark
Offices held (7 terms and offices)
- 2013 to nowUS House, Massachusetts District 5Democratic
Background
- State legislator
- Prosecutor
Sources: Official House site, Wikidata
Official pages (7 links)
Sources (13 sources)
Ballot listing, sec.state.ma.us
Name, party, office and status. Retrieved Oct 28, 2026.
unitedstates/congress-legislators (current)
Office, terms, committees, official links, age. Retrieved Oct 28, 2026. License: CC0-1.0.
Compiled by the @unitedstates project volunteers (rosters from official congressional sources) from official returns. Not an official source.
Federal 2026 candidates: money totals (web/data/people/money) and the MN federal filing list. Bulk files, no API and no key. Retrieved Oct 31, 2026. License: US government work, public domain. Totals and committee names only; no donor names or addresses are stored.
FEC bulk data 2025-2026: contributions from committees to candidates (pas226)
Federal 2026 candidates: committees giving to each candidate (web/data/people/money-types). Bulk file, no API and no key. Retrieved Oct 31, 2026. License: US government work, public domain. Committee totals only; the individual contributions file is not used.
Stanford DIME public v4.0, recipients file (CFscores)
CFscores for candidates and officials; web/data/ideology/dime.json and aggregate.json. A research estimate by Adam Bonica, not an official measure. Retrieved Oct 29, 2026. License: ODC-BY 1.0.
Compiled by Adam Bonica, Stanford University Libraries (built from campaign finance filings) from official returns. Not an official source.
Bonica, Adam. 2024. Database on Ideology, Money in Politics, and Elections: Public version 4.0 [Computer file]. Stanford, CA: Stanford University Libraries. https://data.stanford.edu/dime .
Clerk of the House: roll call votes, 119th Congress
House roll calls. Retrieved Oct 29, 2026. License: US government work.
Congress.gov API: sponsored and cosponsored legislation, nominations
Bills and resolutions. Retrieved Oct 30, 2026. License: US government work.
Election Wrld 2026 candidate files (state election office lists)
Race record. Retrieved Oct 29, 2026. License: state public records; see each row's sourceUrl.
unitedstates/congress-legislators
Race record. Retrieved Oct 29, 2026. License: CC0 1.0.
FEC candidate master file (cnYY.zip bulk download)
Race record. Retrieved Oct 29, 2026. License: US government work, public domain.
Stanford DIME v4.0 recipients file
Race record. Retrieved Oct 29, 2026. License: ODC-BY 1.0.
MIT Election Data and Science Lab, U.S. House 1976-2024
Race record. Retrieved Oct 29, 2026. License: CC0 1.0.
Election Wrld officials files (web/data/officials)
Race record. Retrieved Oct 29, 2026. License: see sources.json.
- Age: unitedstates/congress-legislators (CC0), official birthday field, counted to Nov 3, 2026. We show the age, never the birth date.
- Took office in Congress 2013-12-12. Basis: congress-legislators terms (CC0).
Officials files, 2026 candidate files, returns files, DIME, FEC candidate master and congress-legislators terms, as of 2026-10-29. Nothing about jobs, retirement, or reasons is recorded or inferred.
DataDownload votes (JSON)Sources: FEC, House Clerk, congress.gov, DIME (ODC-BY), Results filesData as of Oct 29, 2026Photo credits