Massachusetts House · 8th Middlesex District

James Arena-DeRosa

Democratic

Where they sit

Every current House member, placed from most liberal to most conservative by how they voted on contested bills.

How these numbers work →
Arena-DeRosa
← Most liberalThe aisleMost conservative →
Votes with DemocratsCrosses party linesVotes with Republicans

James Arena-DeRosa's seat is marked. Seats run from most liberal (left) to most conservative (right), by contested floor votes. Color shows how often each member crosses party lines toward the middle on votes that divide the parties: solid blue or red means almost never, and purple means on at least 1 in 10 of those votes. Gray seats are members too new to score. How these numbers work

Massachusetts House13thpercentile
More liberal than 86% of the Massachusetts House.
Most liberalMost conservative
22nd most liberal of 157

On the November 3 ballot

James Arena-DeRosa is the only candidate on the November 3 ballot. (Massachusetts House, 8th Middlesex District)

Votes with the Speaker
100%
Democrats Republicans 0%100%

Each tick is a current House member, by party; the dot is James Arena-DeRosa.

On 104 contested votes where both voted100% on all 260 votes where both voted
Votes with own party
100%
Democrats Republicans 55%100%

Each tick is a current House member, by party; the dot is James Arena-DeRosa.

On 111 party-line votesPartisan rank: 1 of 157 in the House (tied with 114 others)No one in the House votes with their party more often

Bills

The bills James Arena-DeRosa sponsored this term and how far they got. Co-sponsors aren’t counted.

How these numbers work →
Bills: James Arena-DeRosa
Bills
Sponsored30
Passed both chambers4
Became law3
Vetoed by the Governor0
Not yet law or vetoed1

Rank by bills passed: Rank 12 of 157 in the House (tied with 6 others) · 11 of 131 Democrats (tied with 5 others)

A bill's sponsor is its primary sponsor as the Legislature records it; co-sponsors aren't counted, and a bill a committee reported in a new draft counts for no one.

Bills that passed both chambers

Bills that passed both chambers: James Arena-DeRosa
BillResultFinal action
H.3608
Designating a certain bridge in the town of Hopkinton as the Major General Frank D. Merrill memorial bridge
Not yet law or vetoed Oct. 8, 2026
H.4293
Establishing an economic development special revenue account for the town of Hopkinton
Became law Aug. 21, 2026
H.3911
Revising the charter of the town of Millis, as amended
Became law Aug. 4, 2026
H.4292
Amending the charter of the town of Hopkinton to incorporate appointment powers of the board of library trustees
Became law March 20, 2026

Budget projects

Massachusetts's budget acts don't name the legislator who asked for an item, so there's no budget figure for Massachusetts legislators.

Contested votes where they split

No contested vote against the leader of the chamber or most of their party.

Every roll call

How James Arena-DeRosa voted on each of the 268 floor roll calls while in office, newest first.

Every roll call: James Arena-DeRosa
DateVoteTheir vote Most of their partySpeakerYeas–nays
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Contested and party-line votes link to their own pages; the rest link to the official record.

Contact, committees and caucuses

Contact

Official page
malegislature.gov
Email
james.arena-derosa@mahouse.gov
Capitol office
Room 167, State House 24 Beacon St., Boston, MA 02133
617-722-2810

Committees

  • Agriculture and Fisheries
  • Housing
  • Public Service
  • Veterans and Federal Affairs

Contact details and committee assignments from Open States' data on the Massachusetts Legislature, which it collects from the chambers' websites, as of Oct. 15, 2026.

Source: the Massachusetts Legislature's roll-call records, Feb. 6, 2025 to July 31, 2026. How these numbers work · Corrections