William Brownsberger
Massachusetts State Senator, District D28 since 2012. Lost re-election in 2026; leaves office in January 2027. Ran in 11 elections between 2006 and 2024, winning 11.
- In office
- 14 yrs
- Since 2012
- Bills became law
- 0
- 32 sponsored, 2025–2026 session
- Last margin
- +52.7
- Won 2012
- Elections
- 12
- 2006–2026
Source: Wikidata, congress-legislators and Open States; 99chambers legislative recordsUpdated Oct 27, 2026, 1:52 PM ET
Committees
As of 2026-10.
- Census · chair
- Bills in the Third Reading
- Housing
- Rules
- Rules
- Steering and Policy
- Transportation
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
Career
Offices held, and every time Brownsberger 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 State Senate: Suffolk and Middlesex District | Lost | — | — | — |
| 2024 | Massachusetts State Senate, SD-D28 | Won | — | D+64.5 | — |
| 2022 | Massachusetts State Senate, SD-D28 | Won | — | D+68.9 | — |
| 2020 | Massachusetts State Senate, District 28 | Won | — | — | — |
| 2018 | Massachusetts State Senate, District 28 | Won | — | — | — |
| 2016 | Massachusetts State Senate, District 28 | Won | — | — | — |
| 2014 | Massachusetts State Senate, District 28 | Won | — | — | — |
| 2014 | Massachusetts State Senate, District 28 (primary) | Won | — | — | — |
| 2012 | Massachusetts State Senate, District 28 | Won | D+52.7 | — | — |
| 2010 | Massachusetts House of Representatives, District 82 | Won | D+55.3 | — | — |
| 2008 | Massachusetts House of Representatives, District 82 | Won | — | — | — |
| 2006 | Massachusetts House of Representatives, District 82 | Won | D+37.1 | — | — |
Source: 99chambers results archive; 2026: civicAPI (unofficial)Updated Nov 8, 2026, 7:01 PM ET
Campaign money, 2025–26
- Raised
- $647K
- Spent
- $825.5K
- Cash
- $884
Source: Massachusetts Office of Campaign and Political Finance filings through Oct 20, 2026Updated Oct 31, 2026, 6:19 PM ET
Campaign committees
Open committees can still raise and spend money.
| Brownsberger Committee State | Active |
Source: Massachusetts Office of Campaign and Political Finance filings through Oct 20, 2026Updated Oct 31, 2026, 6:19 PM ET
Seats Brownsberger has held
- Massachusetts State Senate, District D28 · since 2022
- Massachusetts State Senate, District 28 · since 2012
- Massachusetts House of Representatives, District 82 · 2006–2012
Source: 99chambers results archive
Who Brownsberger has run against
- Steven W. Aylward (R) · 2012 election, won
- Lalig Musserian (I) · 2010 election, won
- M. Elizabeth Firenze (R) · 2006 election, won
Source: 99chambers results archive; 2026: civicAPI (unofficial)
How we know Brownsberger
One person, matched across every source we use.
- Open States ocd-person/94929da6-2219-4a44-99c3-d6561eead9f5
- Wikidata Q8002723
Source: Identity links: Wikidata, congress-legislators, Open States, FECUpdated Oct 27, 2026, 1:52 PM ET