Matthew L. LaMountain
Photo: State of Rhode Island General Assembly, CC0 1.0
DemocratIn office since Nov 2022

Matthew L. LaMountain

Rhode Island State Senator, District 31 since 2022. Ran in 2 elections between 2022 and 2024, winning 2. Re-elected in 2026. Next on the ballot in 2028.

Rhode Island State Senator, District 31

In office
3 yrs
Since 2022
Bills became law
151
635 sponsored, 2025–2026 session
Votes missed
0.5%
Chamber median 1.8%
With party
100%
On votes splitting the parties
Last margin
+90.0
Won 2026
Next election
2028
Nov 7, 2028

Source: Wikidata, congress-legislators and Open States; 99chambers legislative recordsUpdated Oct 27, 2026, 9:43 AM ET

Committees

As of 2026-10.

  • Judiciary · chair
  • Rules, Government Ethics and Oversight
  • Special Legislation and Veterans' Affairs

Source: Open States committeesUpdated Oct 27, 2026, 9:43 AM ET

Legislation

2025–2026 session · 635 sponsored · 151 became law
BillIntroCmteSenateHouseLaw
SB 3335 AN ACT RELATING TO TOWNS AND CITIES -- GENERAL POWERS -- CITY OF WARWICK
Became law Jun 2026
SB 3357 AN ACT AUTHORIZING THE CITY OF CRANSTON TO FINANCE THE ACQUISITION, DEMOLITION, CONSTRUCTION, IMPROVEMENT,…
Became law Jun 2026
SB 3355 AN ACT AUTHORIZING THE CITY OF CRANSTON TO ISSUE NOT TO EXCEED $25,000,000 GENERAL OBLIGATION BONDS, NOTES…
Became law Jun 2026
SB 3354 AN ACT AUTHORIZING THE CITY OF CRANSTON TO FINANCE THE REPAIR, CONSTRUCTION AND REHABILITATION OF STORM…
Became law Jun 2026
SB 3356 AN ACT AUTHORIZING THE CITY OF CRANSTON TO FINANCE THE ACQUISITION, CONSTRUCTION, IMPROVEMENT, RENOVATION,…
Became law Jun 2026

Source: Open States billsUpdated Nov 6, 2026, 4:22 PM ET

Voting record

2025–2026 session · placement by roll-call votes

Where LaMountain sits in the Rhode Island State Senate

LaMountain is closer to the center than 61% of the chamber's Democrats.

Dem. medianRep. medianLaMountainMore liberalMore conservative

Closest: Lou DiPalma, Hanna Gallo, Jake Bissaillon

Source: 99chambers roll-call scalingUpdated Nov 6, 2026, 5:01 PM ET

With LaMountain’s party

  • Votes with the chamber's Democrats100%

Black tick: the average of Democrats in the Rhode Island State Senate.

Source: 99chambers legislative scores from roll calls and cosponsorships

Key votes

Votes chosen for their effect, not their side: LaMountain’s vote, each party’s majority, and the result. An orange vote differs from most Democrats.

Source: 99chambers key votes from Congress.gov, Voteview and Open States roll calls

Career

Offices held, and every time LaMountain 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.

YearRaceResultMarginSeat+/−
2026Rhode Island State Senate, District 31WonD+90.0D+7.8+82.2
2024Rhode Island State Senate, District 31WonD+21.0D+7.8+13.2
2022Rhode Island State Senate, District 31WonD+22.9D+20.0+2.9

Source: 99chambers results archive; 2026: Rhode Island Board of Elections (unofficial)Updated Nov 8, 2026, 7:01 PM ET

Campaign money, 2025–26

Raised
$104.7K
Spent
$41.3K
Cash
$106.5K

Source: Rhode Island Board of Elections filings through Oct 26, 2026Updated Oct 31, 2026, 7:18 PM ET

Campaign committees

Open committees can still raise and spend money.

MATTHEW L LAMOUNTAIN
State
Active

Source: Rhode Island Board of Elections filings through Oct 26, 2026Updated Oct 31, 2026, 7:18 PM ET

Seats LaMountain has held

Source: 99chambers results archive

Who LaMountain has run against

  • Write-in (I) · 2026 election, won
  • Lisa Morse (R) · 2024 election, won

Source: 99chambers results archive; 2026: Rhode Island Board of Elections (unofficial)

How we know LaMountain

One person, matched across every source we use.

Source: Identity links: Wikidata, congress-legislators, Open States, FECUpdated Oct 27, 2026, 9:43 AM ET