Ed Markey defeats Seth Moulton as older incumbents win Massachusetts primaries

Markey secures Senate renomination

Senator Ed Markey won the Massachusetts Democratic Senate primary on Tuesday, defeating 47-year-old Representative Seth Moulton. The Associated Press called the race roughly 30 minutes after polls closed, with Markey establishing a lead of nearly 50 points. Early projections reported by Bloomberg showed the 80-year-old incumbent holding more than 70% of the vote with about 3% of ballots counted. Markey, who first entered the House of Representatives in 1976 and joined the Senate in 2013, will advance to face Republican nominee John Deaton in the November general election. Moulton, an Iraq War veteran completing his sixth term in the House, focused his campaign on a demand for generational transition among party leaders. Markey countered by assembling backing from progressive figures, including Senator Bernie Sanders and Representative Alexandria Ocasio-Cortez, while promising to step down if age ever hindered his Senate duties.

Ideological and generational divides

The Senate contest centered on disagreements over ideology, technology, and identity policy. Markey challenged Moulton over post-2024 comments regarding transgender youth participation in sports, arguing that his challenger had compromised support for vulnerable groups. Moulton maintained his policy stance while noting regret if his wording had caused offense. Moulton pointed to a debate exchange where Markey stated he did not know whether his office used artificial intelligence, citing the remark as evidence that the incumbent was detached from modern governance. Markey previously turned back a generational primary challenge in 2020 against Joseph P. Kennedy III, who became the first member of his family to lose an election in Massachusetts.

We need to unite our party. And we want to excite and unite the country for the general election. So I think that job's not finished until November.

Incumbents retain Massachusetts House seats

Veteran Democratic lawmakers in the House also defeated primary challengers across the state on Tuesday. In Massachusetts's 8th Congressional District, 71-year-old Representative Stephen Lynch defeated 39-year-old attorney Patrick Roath. Roath criticized Lynch for past votes against the Affordable Care Act and for supporting the Laken Riley Act, receiving more than $450,000 in support from the youth-advocacy political action committee Leaders We Deserve. Lynch, a former ironworker in office since 2001, relied on trade union support and defended his centrist positions. Representative Richard Neal, 77, who has served western Massachusetts in the 1st Congressional District since 1989, also secured renomination against a progressive challenger. In the open 6th Congressional District race to succeed Moulton, former Biden White House aide Dan Koh won a five-candidate primary after running advertisements promoting endorsements from Joe Biden and Kamala Harris.

We need more people in the middle to give that strength to the Democrats so that we can actually be a party that governs, and not simply a party of protesters.

National balance of progressive primaries

The Massachusetts results capped a cycle of mixed primary outcomes for the Democratic Party's progressive wing. Progressive and democratic socialist candidates defeated four sitting House incumbents across New York, Michigan, and Colorado earlier this year, while winning Senate nominations in Maine, Michigan, Minnesota, and Illinois. The faction also picked up open House nominations from Texas to Philadelphia. Those gains stood alongside defeats in state contests, such as the Wisconsin gubernatorial primary, where democratic socialist state Representative Francesca Hong lost to Milwaukee County Executive David Crowley. Representative Ayanna Pressley argued that repeated primary wins demonstrate a coordinated strategy rather than isolated political flukes.

It's not just about this cycle. It's not just about a handful of people. It's a trend that reflects a shift in people's very hardened realities, where they are saying, 'I'm going to demand more.'