David DeCoste
Massachusetts State Representative, District 115 since 2014. Ran in 7 elections between 2014 and 2024, winning 7. Ran for re-election in 2026; the count goes on.
- In office
- 12 yrs
- Since 2014
- Bills became law
- 0
- 30 sponsored, 2025–2026 session
- Votes missed
- 0.0%
- Chamber median 0.9%
- With party
- 100%
- On votes splitting the parties
- Last margin
- +3.5
- Won 2022
- Elections
- 8
- 2014–2026
Source: Wikidata, congress-legislators and Open States; 99chambers legislative recordsUpdated Oct 27, 2026, 1:52 PM ET
Committees
As of 2026-10.
- Housing · ranking republican member
- Public Service · ranking republican member
- Transportation · ranking republican member
- Aging and Independence
- Racial Equity, Civil Rights and Inclusion
Source: Open States committeesUpdated Oct 27, 2026, 9:43 AM ET
Legislation
No bills in this list for the 2025–2026 session.
Source: Open States billsUpdated Nov 6, 2026, 4:22 PM ET
Voting record
Where DeCoste sits in the Massachusetts House of Representatives
DeCoste is closer to the center than 32% of the chamber's Republicans.
Closest: Joe McKenna, Donnie Berthiaume, Ken Sweezey
Source: 99chambers roll-call scalingUpdated Nov 6, 2026, 4:51 PM ET
With DeCoste’s party
- Votes with the chamber's Republicans100%
- Cosponsorships of the other party's bills38%
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: DeCoste’s vote, each party’s majority, and the result. An orange vote differs from most Republicans.
| Date | Bill | DeCoste | 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 | No | Yes | Yes | Passed 145–6 |
| Jul 1, 2026 | H 5555: An Act making appropriations for the fiscal year 2027 for the maintenance of the… | Yes | 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 DeCoste 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 115 | Counting | R+10.2 | R+0.3 | +9.9 |
| 2024 | Massachusetts House of Representatives, District 115 | Won | — | R+0.3 | — |
| 2022 | Massachusetts House of Representatives, District 115 | Won | R+3.5 | D+8.7 | +12.2 |
| 2020 | Massachusetts House of Representatives, District 176 | Won | R+1.4 | — | — |
| 2018 | Massachusetts House of Representatives, District 176 | Won | R+3.5 | — | — |
| 2016 | Massachusetts House of Representatives, District 176 | Won | R+2.1 | — | — |
| 2014 | Massachusetts House of Representatives, District 176 | Won | R+0.3 | — | — |
| 2014 | Massachusetts House of Representatives, District 176 (primary) | Won | +1.3 | — | — |
Source: 99chambers results archive; 2026: civicAPI (unofficial)Updated Nov 8, 2026, 7:01 PM ET
Campaign money, 2025–26
- Raised
- $34.4K
- Spent
- $20.2K
- Cash
- $13K
Source: Massachusetts Office of Campaign and Political Finance filings through Oct 26, 2026Updated Oct 31, 2026, 6:19 PM ET
Campaign committees
Open committees can still raise and spend money.
| DeCoste Committee State | Active |
Source: Massachusetts Office of Campaign and Political Finance filings through Oct 26, 2026Updated Oct 31, 2026, 6:19 PM ET
Seats DeCoste has held
- Massachusetts House of Representatives, District 115 · since 2022
- Massachusetts House of Representatives, District 176 · since 2014
Source: 99chambers results archive
Who DeCoste has run against
- Lori Childs (D) · 2026 election
- Emmanuel J. Dockter (D) · 2022 election, won
- Alison M. Demong (D) · 2018 election, won
- Kara L. Nyman (D) · 2016 election, won
- Rhonda L. Nyman (D) · 2014 election, won
Source: 99chambers results archive; 2026: civicAPI (unofficial)
How we know DeCoste
One person, matched across every source we use.
- Open States ocd-person/cf295962-4f8d-427a-84e9-c7615ff94c8c
- Wikidata Q18977906
Source: Identity links: Wikidata, congress-legislators, Open States, FECUpdated Oct 27, 2026, 1:52 PM ET