Ed Markey Wins Massachusetts Primary: Key Takeaways

Veteran Democratic incumbents fended off challenges from younger rivals in Massachusetts primaries on Tuesday, with Senator Ed Markey defeating Representative Seth Moulton for the party's nomination. Longtime Representatives Stephen Lynch and Richard Neal also won their races.

Incumbents Overcome Younger Challengers

Several of Massachusetts' longest-serving Democratic lawmakers survived primary challenges on Tuesday. Senator Ed Markey, 80, beat Representative Seth Moulton, 47, for the Democratic nod.

Similar challenges failed in the House. Representative Stephen Lynch, 71, who has held his seat since 2001, defeated progressive attorney Patrick Roath, 39, in the 8th Congressional District. Representative Richard Neal, 77, first elected to Congress in 1988, beat public school teacher Jeromie Whalen, 39, in the 1st District.

All three will advance to the November general election, where Democrats hold a strong advantage in Massachusetts.

Markey Wins on Progressive Stance Despite Age

Moulton campaigned on the need for a new generation of leadership, but Markey's age proved no disadvantage. Markey, 33 years older than Moulton, ran as the more progressive candidate, earning endorsements from prominent left-wing figures like Representative Alexandria Ocasio-Cortez and Independent Senator Bernie Sanders.

Markey also secured support from Senator Elizabeth Warren and other members of the state's congressional delegation, while no delegation member backed Moulton. Moulton, a former Marine and a more moderate candidate, drew support from groups like VoteVets and New Jersey Governor Mikie Sherrill.

Markey repeatedly attacked Moulton over comments questioning transgender women's participation in women's sports. Moulton later apologized and said he supports the transgender community, but Markey kept raising the issue on the campaign trail.

The results showed age and ideology don't necessarily go hand in hand in Massachusetts. In his victory speech, Markey declared that generational change is not about compromising to do small things slightly better, but fighting to do the biggest things the best way.

Moulton, conceding, said he would back Markey. "Challenging leadership and calling for a new generation isn't easy, but it's necessary," Moulton told supporters.

Progressive Challengers Pressure But Fall Short

Though unable to unseat incumbents, some young candidates ran competitive campaigns. Roath raised about $1.3 million compared with Lynch's $910,000, despite facing a congressman who has represented the district for over two decades.

Roath also narrowed the gap significantly. Lynch led Roath by 26 points in a February poll, but by the final stretch, the margin had shrunk to 7 points. Ultimately, Roath still lost. Whalen also challenged Neal from the left in the 1st District on progressive policies like Medicare for All but couldn't overcome the veteran lawmaker.

Massachusetts Diverges From National Trend

The Massachusetts results contrast with some other Democratic primaries nationwide, where young progressive challengers ousted veteran politicians. In Connecticut last month, former Hartford Mayor Luke Bronin defeated 78-year-old Representative John Larson, who had served nearly three decades. In June, Melat Kiros, 29, beat Representative Diana DeGette in Colorado. A week later, two New York Democratic incumbents lost to left-wing challengers.

In Massachusetts, all three major challenges to long-serving incumbents failed. But the outcome isn't necessarily a rejection of progressive policies, as Markey himself ran as the progressive candidate. The common thread is the strength of incumbents regardless of whether challengers came from the center or the left.

Dan Koh Wins With Biden's Backing

Dan Koh, a former White House aide under Biden, won the Democratic primary in Massachusetts' 6th Congressional District, the seat Moulton vacated to run for Senate. Koh stood out in the five-candidate race by openly embracing the former Biden administration. He earned endorsements from former President Joe Biden, former Vice President Kamala Harris, and former Labor Secretary and Boston Mayor Marty Walsh. Koh heads into November as the front-runner.

Primaries Could Decide Final Outcome

In Massachusetts, where Democrats dominate, primaries can be the toughest hurdle. Markey will face Republican John Deaton, who was unopposed in Tuesday's primary. Deaton previously ran for Senate against Elizabeth Warren in 2024 and lost by around 20 points. Democratic candidates in several House districts also enter November as front-runners, meaning Tuesday's results could largely shape the state's congressional delegation for the next term.