Who is running for District Attorney, Northern District (Middlesex) in 2026?

The District Attorney, Northern District (Middlesex) race was decided at the 2026 primary - Marian T. Ryan won the seat - and does not appear on the November 3, 2026 ballot. 2 candidates were on the primary ballot: Marian T. Ryan and David Marc Solet. Candidate information follows official Middlesex County election filings; verify with the official election office linked below.

Middlesex County, Massachusetts

District Attorney, Northern District (Middlesex)

Massachusetts › Middlesex County › District Attorney, Northern District (Middlesex)

Decided at the 2026 primary — Marian T. Ryan won the seat

DECIDED at the September 1, 2026 primary. Marian T. Ryan won the Democratic contest that decided the office, with no Republican running. David Marc Solet conceded between 10:30 and 11 p.m., saying the numbers were incomplete but sufficient; Ryan took 72 percent in Newton on unofficial results, per the Boston Globe, the Harvard Crimson and Fig City News. The Associated Press did not call this race and no districtwide totals have been published. Results are unofficial until certified by the Secretary of the Commonwealth.

Winner

Marian T. Ryan

Democratic · Incumbent

Marian T. Ryan has been Middlesex District Attorney since 2013 and is a career trial and appellate prosecutor seeking a fourth term, per the Waltham Times. She runs on cash bail reform for low-level offenses, diversion programs, and her refusal to back mandatory minimums, per Axios Boston.

2026 priorities

Not requesting cash bail in low-level nonviolent cases, per Axios Boston
Juvenile, young adult, and drug diversion plus restorative justice programming, per her campaign materials
Opposing mandatory minimum sentences while prosecuting the county's most violent cases, per Axios Boston

Also ran in the primary

David Marc Solet

Democratic

Profile

David Marc Solet is a career prosecutor of 24 years in the Middlesex District Attorney's Office who led its Cold Case Homicide Unit from 2019 to 2025 and was named 2025 Middlesex County Prosecutor of the Year, per the Boston Globe. He argues the office relies on outdated tactics, pointing to a drop in gun-trafficking convictions, per Axios Boston; his campaign cites more than 50 endorsements from police unions and public safety groups.

A dedicated crime gun unit targeting illegal firearms trafficking, per Axios Boston and his campaign site
Closing statute of limitations loopholes for cold-case sexual assault victims, per his campaign site
Tougher pretrial detention rules for the most serious offenders, per his campaign site

Campaign site →

Verify this race
Candidate roster from official Middlesex County Supervisor of Elections filings, last verified 2026-09-02. Bios and priorities carry their attribution inline.
Cross-check with the official Massachusetts election office, or see the full Middlesex County sample ballot and your exact ballot by address.