Massachusetts primary tests Democratic progressive-moderate split in Senate race

September 1, 2026 at 05:36 PM2 min

This digest was compiled by AI from multiple sources — links to the originals are below.

Massachusetts voters head to the polls on Tuesday for a primary featuring a Senate contest between incumbent Ed Markey and Representative Seth Moulton. The race pits the Democratic Party's progressive and moderate wings against each other. Competitive primaries in the 6th and 8th Congressional Districts and the governor's race are also on the ballot.

Key Facts

Polls open at 7am ET (11:00 GMT) and close at 8pm ET (midnight GMT) on Tuesday, September 1, 2026.
In the 6th District, Dan Koh leads fundraising with about $4.7m in contributions, followed by Tram Nguyen with about $895,000 and John Beccia with a $4m personal loan.
In the 8th District, 13-term incumbent Stephen Lynch, 71, faces progressive attorney Patrick Roath, 39, who is endorsed by David Hogg's PAC Leaders We Deserve.
The winner of the 6th District Democratic primary will face Republican Micah Jones, who is unopposed for his party's nomination.
The winner of the 8th District Democratic primary will face Republican Robert Burke, who lost his 2024 bid for Congress to Lynch.

Senate Race

The Senate primary features incumbent Ed Markey, a longtime progressive, against Representative Seth Moulton, a member of the moderate New Democrat Coalition. The contest is the latest in a series of races pitting the Democratic Party's progressive and moderate wings against each other.

6th District Primary

Voters in the 6th District will choose a Democratic nominee to succeed Moulton, who is running for Senate. Top contenders include former local election official Dan Koh, financial technology executive John Beccia, and State Representative Tram Nguyen. Koh leads fundraising with about $4.7m in contributions and holds endorsements from former President Joe Biden and former Vice President Kamala Harris. Nguyen has raised about $895,000, while Beccia has boosted his campaign with a $4m personal loan. The winner will face Republican Micah Jones, who is unopposed for his party's nomination.

8th District Primary

In the 8th District, 13-term incumbent Stephen Lynch, 71, faces a primary challenge from progressive attorney Patrick Roath, 39. Roath is endorsed by Leaders We Deserve, the PAC headed by gun-safety activist David Hogg. Roath has criticized Lynch's centrist voting record, including his vote against the Affordable Care Act in March 2010 and his support for the Laken Riley Act. The winner will face Republican Robert Burke, who lost his 2024 bid for Congress to Lynch.