Massachusetts Senate · Fifth Middlesex District

Jason Lewis

Democratic

Where they sit

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

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

Jason Lewis'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 Senate61stpercentile
More conservative than 60% of the Massachusetts Senate.
Most liberalMost conservative
16th most conservative of 39
Votes with the Senate Majority Leader
97%
Democrats Republicans 0%100%

Each tick is a current senator, by party; the dot is Jason Lewis.

On 60 contested votes where both voted99% on all 214 votes where both voted
Votes with own party
98%
Democrats Republicans 65%100%

Each tick is a current senator, by party; the dot is Jason Lewis.

On 86 party-line votesPartisan rank: 24 of 39 in the Senate (tied with 2 others)23 senators vote with their party more often

Bills

The bills Jason Lewis sponsored this term and how far they got. Co-sponsors aren’t counted.

How these numbers work →
Bills: Jason Lewis
Bills
Sponsored121
Passed both chambers1
Became law1
Vetoed by the Governor0

Rank by bills passed: Rank 15 of 40 in the Senate (tied with 8 others) · 11 of 35 Democrats (tied with 7 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: Jason Lewis
BillResultFinal action
S.2580
Establishing a sick leave bank for Robert Tiro, an employee of the trial court of the commonwealth
Became law Aug. 21, 2025

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

2 against the Senate Majority Leader; 2 against most of their party.

Contested votes where they split: Jason Lewis
DateBill and motion Their voteSenate Majority LeaderMost of their party
Nov. 19, 2025 S.2722: Modernizing the commonwealth’s cannabis laws
Amendment
Yea Nay (split) Nay (split)
Nov. 19, 2025 S.2722: Modernizing the commonwealth’s cannabis laws
Amendment
Yea Nay (split) Nay (split)

Every roll call

How Jason Lewis voted on each of the 237 floor roll calls while in office, newest first.

Every roll call: Jason Lewis
DateVoteTheir vote Most of their partySenate Majority LeaderYeas–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
jason.lewis@masenate.gov
Capitol office
Room 511-B, State House 24 Beacon St., Boston, MA 02133
617-722-1206

Committees

  • Education Chair
  • Ethics Chair
  • Labor and Workforce Development Vice chair
  • Public Health
  • Rules
  • Rules
  • Transportation

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