Four Democrats are racing toward a September 1 primary to replace retiring state Sen. Patricia Jehlen, who has served in the Massachusetts Senate for 21 years and in the Legislature overall for 35, and the contest just got a jolt: Jehlen has thrown her support behind state Rep. Christine Barber. No Republican filed for the seat, meaning whoever wins the Democratic primary will effectively secure the 2nd Middlesex Senate District seat outright.
Jehlen made her endorsement in an email newsletter on Tuesday, calling Barber a “changemaker” capable of working with colleagues and advocates to bring home local funding and pass legislation, according to Cambridge Day. The move carries weight because Jehlen had initially signaled she would stay neutral in the multi-way primary, and her late shift adds institutional muscle to Barber's campaign heading into the final stretch, per the same outlet's earlier reporting on the race.
Barber, a state representative from the 34th Middlesex District, is one of four candidates vying for the seat, alongside fellow state Rep. Erika Uyterhoeven of the 27th Middlesex District, Cambridge Vice Mayor Burhan Azeem, and Somerville City Councilor Matthew McLaughlin, as detailed in MassLive's rundown of the race. A fifth candidate, Winchester School Committee member Tom Hopcroft, entered the field earlier but dropped his bid in July 2026.
A Crowded Field, A Six-Figure Money Chase
Hopcroft formally suspended active campaigning on July 31, citing structural advantages held by political insiders, though his name will still appear on the ballot because the state's withdrawal deadline had already passed, according to Winchester News. He started his campaign with just $2,200, compared to opponents who entered with six-figure war chests, the outlet reported.
The five candidates who filed collectively raised roughly $491,000 between December 1, 2025, and mid-July 2026, according to campaign filings reviewed by Gotta Know Medford. Uyterhoeven held the largest cash reserve of any candidate, with $144,886 on hand as of June 30, backed by 60 maximum $1,000 individual donations; the outlet's reporting notes she spent less than $40,000 before July to conserve capital for late campaigning. Azeem, by contrast, launched his bid with just $1,865 in the bank but outraised both sitting state representatives in new dollars brought in by mid-July, while Barber ranked second overall in total funds raised.
Beacon Hill Experience Versus Municipal Roots
The race centers less on ideological differences — all four active candidates back expanded housing, transit investment, and climate action — and more on legislative style, financial clout, and governance philosophy, according to an Axios Boston analysis of the contest. MassLive's coverage frames it similarly, describing candidates as separating themselves based on how they would serve in the Senate and work with legislative leaders in what Axios's analysis calls a remarkably top-down power structure in the chamber.
Barber and Uyterhoeven bring legislative seniority and existing campaign infrastructure from Beacon Hill, while Azeem and McLaughlin emphasize municipal executive experience and working-class advocacy, per Cambridge Day's earlier reporting on the primary. Five candidates fielded questions on housing affordability, utility rates, and public transit at a candidate forum at Somerville High School on July 16, which drew about 230 in-person and online attendees, according to Gotta Know Medford.
Open Senate Seat Ripples Into Two House Races
Because Barber and Uyterhoeven are both giving up their House seats to run for Senate, their departures have created open Democratic primary battles in the 34th and 27th Middlesex House districts as well, also decided September 1. Cambridge Day reports that both House races feature multi-candidate slates of municipal councilors and local advocates, reshaping representation across Somerville and Medford beyond the Senate contest itself.
The 2nd Middlesex Senate District covers all of Somerville and Medford, Cambridge Wards 9 through 11, and Winchester Precincts 4 through 7 — Winchester itself is split between the 2nd and 5th Middlesex Senate districts. The district has been called the state's most progressive, and Jehlen ran uncontested in the November 2024 general election, drawing 72,232 votes in a district where Democratic presidential candidates have won by a 61.7 percentage point margin, according to data from MultiState.
How and When to Vote
Statewide early in-person voting for the September 1 primary runs from August 22 through August 28 at polling locations in Somerville, Medford, Cambridge, and Winchester, per Gotta Know Medford. Polling locations will be open from 7 a.m. to 8 p.m. on primary election day itself.
