Elections · U.S. House · Massachusetts
2026 Massachusetts House race,
Katherine Clark (Democrat) is the only name printed on the November 3, 2026 ballot for U.S. House in Massachusetts District 5, as recorded September 22, 2026 from the Secretary of the Commonwealth, Elections Division.
The November ballot
The primary has been held and no other party put a nominee on the ballot for this seat, so Clark is the only name voters will see for it in November.
The seat
Katherine Clark
Democrat · Holds the seat now
First took office 2013 · Age 63
From the member's own disclosures and congress.gov. Not cosponsoring is not a vote against a ban.
How to vote in Massachusetts
- General electionNovember 3, 2026
Register 10 days before the election.
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How they won the primary
The primary · 116,552 votes
- Katherine Clark Won: 73.6% 85,802
- Jonathan Paz: 19.7% 22,904
- Tarik Samman: 6.6% 7,675
The total includes 171 write-in or scattered votes not listed by candidate.
Primary results as recorded October 12, 2026, ordered by votes. Source: Massachusetts Secretary of the Commonwealth primary results database. A primary result is a recorded fact about a past contest, not a prediction of November.
The money on this race
- Raised by candidates
- $4.7M
- Outside money
- $10
Where each candidate's money comes from
Small donors give $200 or less; PACs are political action committees. Shares of each candidate's own receipts on file with the FEC. Outside money is not part of these figures.
Other includes money transferred in from committees the candidate authorized, such as a joint fundraising committee, which reports its own donors to the FEC: Katherine Clark $1.5M.
Who is spending on this race
The largest group spending independently here, ranked; open a row for whose race the money went into.
Independent expenditures reported to the FEC; direction is each group's own declared filing.
How this seat voted last time
Unopposed in 2024
- Katherine Clark Won: 98.2%
291,890 votes for candidates. The other 1.8% is write-in and scattered votes, counted in that total. A past result is a filed fact, not a prediction of November.
Certified returns via MIT Election Data and Science Lab, from the House Clerk's election statistics and state canvasses.
The district
Census context- People
- 779K
- Median household income
- $131K
- Unemployment
- 4.5%
- Living below the poverty line
- 7.7%
- Without health insurance
- 2.6%
U.S. Census Bureau, ACS 2024 5-year estimates. Context about the district, not a statement about any candidate.
Compare the candidates side by side
Each column is one candidate's own filed record; nothing is sorted to pick a winner.
| DemocratKatherine Clark | DemocratJonathan Paz | DemocratTarik Samman | |
|---|---|---|---|
| Raised | $4.5M | $119K | $44K |
| Small donors | $86K | $45K | $6.5K |
| Large donors | $1.0M | $73K | $27K |
| PACs | $1.8M | - | - |
| Self funded | - | - | $11K |
| Outside for | $10 | - | - |
| Disclosed trades | 598 | - | - |
| A bill to ban stock trading | Has not cosponsored | - | - |
Money from the FEC. Trades and cosponsorship come from the disclosures and the congress.gov record of candidates who sit in Congress now. A hyphen is a figure not on file, not a zero. Not cosponsoring is not a vote against a ban.
Candidates and financing from the FEC, public domain. Candidate totals are each campaign's latest FEC report, ending between August 12, 2026 and September 30, 2026. Outside money is the FEC's processed total of independent expenditures plus the 24- and 48-hour reports filed since each group's latest regular report. It covers this two-year cycle, the same as the candidate totals. Dataset built 2026-10-12. Nothing here is a forecast, a grade, or a ranking of candidates.