Donnie Berthiaume
Massachusetts State Representative, District 146 since 2014. Ran in 7 elections between 2014 and 2024, winning 7. Re-elected in 2026. Next on the ballot in 2028.
- In office
- 12 yrs
- Since 2014
- Bills became law
- 0
- 14 sponsored, 2025–2026 session
- Votes missed
- 0.4%
- Chamber median 0.9%
- With party
- 100%
- On votes splitting the parties
- Last margin
- +24.6
- Won 2020
- Next election
- 2028
- Nov 7, 2028
Source: Wikidata, congress-legislators and Open States; 99chambers legislative recordsUpdated Oct 27, 2026, 1:51 PM ET
Committees
As of 2026-10.
- Cannabis Policy · ranking member
- Judiciary · ranking republican member
- Consumer Protection and Professional Licensure
- Housing
Source: Open States committeesUpdated Oct 27, 2026, 9:43 AM ET
Legislation
Failed in the House Feb 2026
Failed in committee Apr 2026
Failed in committee Mar 2026
Source: Open States billsUpdated Nov 6, 2026, 4:22 PM ET
Voting record
Where Berthiaume sits in the Massachusetts House of Representatives
Berthiaume is closer to the center than 24% of the chamber's Republicans.
Closest: Joe McKenna, Ken Sweezey, David DeCoste
Source: 99chambers roll-call scalingUpdated Nov 6, 2026, 4:51 PM ET
With Berthiaume’s party
- Votes with the chamber's Republicans100%
- Cosponsorships of the other party's bills22%
Black tick: the average of Republicans in the Massachusetts House of Representatives.
Source: 99chambers legislative scores from roll calls and cosponsorships
Key votes
Votes chosen for their effect, not their side: Berthiaume’s vote, each party’s majority, and the result. An orange vote differs from most Republicans.
| Date | Bill | Berthiaume | Rep. majority | Dem. majority | Result |
|---|---|---|---|---|---|
| Jul 22, 2026 | H 5595: An Act prioritizing patient access to care | No | No | Yes | Passed 119–33 |
| Jul 8, 2026 | H 5562: An Act relative to economic development in the commonwealth | Yes | Yes | Yes | Passed 145–6 |
| Jul 1, 2026 | H 5555: An Act making appropriations for the fiscal year 2027 for the maintenance of the… | No | Yes | Yes | Passed 142–6 |
| Jun 10, 2026 | S 2726: An Act regarding free expression | Yes | Yes | No | Failed 23–133 |
| Apr 28, 2026 | H 5500: An Act making appropriations for the fiscal year 2027 for the maintenance of the… | No | No | Yes | Passed 136–20 |
Source: 99chambers key votes from Congress.gov, Voteview and Open States roll calls
Career
Offices held, and every time Berthiaume was on a ballot. Filled marks are general elections won; hollow marks are primaries; an orange outline is a loss.
Source: 99chambers results archive (MEDSL, Klarner, state election offices)
Elections
Margin against the seat’s presidential baseline: how the seat voted for president in the same or nearest year.
| Year | Race | Result | Margin | Seat | +/− |
|---|---|---|---|---|---|
| 2026 | Massachusetts House of Representatives, District 146 | Won | — | R+10.2 | — |
| 2024 | Massachusetts House of Representatives, District 146 | Won | — | R+10.2 | — |
| 2022 | Massachusetts House of Representatives, District 146 | Won | — | R+3.1 | — |
| 2020 | Massachusetts House of Representatives, District 207 | Won | R+24.6 | — | — |
| 2018 | Massachusetts House of Representatives, District 207 | Won | R+19.0 | — | — |
| 2016 | Massachusetts House of Representatives, District 207 | Won | — | — | — |
| 2014 | Massachusetts House of Representatives, District 207 | Won | R+12.8 | — | — |
| 2014 | Massachusetts House of Representatives, District 207 (primary) | Won | +20.9 | — | — |
Source: 99chambers results archive; 2026: civicAPI (unofficial)Updated Nov 8, 2026, 7:01 PM ET
Campaign money, 2025–26
- Raised
- $27.8K
- Spent
- $22.4K
- Cash
- $5.7K
Source: Massachusetts Office of Campaign and Political Finance filings through Sep 30, 2026Updated Oct 31, 2026, 6:19 PM ET
Campaign committees
Open committees can still raise and spend money.
| Berthiaume Committee State | Active |
Source: Massachusetts Office of Campaign and Political Finance filings through Sep 30, 2026Updated Oct 31, 2026, 6:19 PM ET
Seats Berthiaume has held
- Massachusetts House of Representatives, District 146 · since 2022
- Massachusetts House of Representatives, District 207 · since 2014
Source: 99chambers results archive
Who Berthiaume has run against
- Samuel Biagetti (D) · 2020 election, won
- Jean Anne Strauss (D) · 2018 election, won
- Matthew Castriotta (D) · 2014 election, won
Source: 99chambers results archive; 2026: civicAPI (unofficial)
How we know Berthiaume
One person, matched across every source we use.
- Open States ocd-person/5a276629-f50a-4d9a-a54e-2c0e07f84968
- Wikidata Q18684785
Source: Identity links: Wikidata, congress-legislators, Open States, FECUpdated Oct 27, 2026, 1:51 PM ET