Sen. Ed Markey Defeats Seth Moulton in Massachusetts Democratic Senate Primary/ TezzBuzz/ WASHINGTON/ J. Mansour/ Sen. Ed Markey defeated Rep. Seth Moulton in Massachusetts’ Democratic Senate primary, overcoming a campaign centered on generational change. Markey argued that Moulton’s moderate positions, particularly his past comments about transgender athletes, were out of step with Democratic voters.
Veteran Reps. Stephen Lynch and Richard Neal also defeated younger challengers in their congressional primaries.
Quick Look
- Markey, 80, won the Democratic nomination for a third Senate term.
- He defeated Moulton, 47, who campaigned against the political “status quo.”
- Markey framed the contest around progressive policies rather than age.
- Transgender rights became a defining campaign issue.
- Moulton conceded and pledged to support Markey.
- Markey will face Republican John Deaton in November.
- Deaton ran unopposed in the Republican primary.
- Deaton lost to Sen. Elizabeth Warren by about 20 points in 2024.
- Massachusetts strongly favors Democratic candidates statewide.
- Rep. Stephen Lynch defeated Patrick Roath in the 8th District.
- Rep. Richard Neal defeated Jeromie Whalen in the 1st District.
- The results favored experience over generational-change arguments.
Deep Look
Markey wins Democratic Senate nomination
Sen. Ed Markey secured Massachusetts’ Democratic Senate nomination Tuesday, defeating Rep. Seth Moulton and overcoming another challenge built around calls for generational change.
Markey, 80, is seeking a third six-year Senate term. Moulton, 47, had argued that replacing the longtime incumbent was necessary to move the Democratic Party beyond the “status quo.”
Rather than allowing the contest to become a referendum on his age, Markey emphasized ideological differences and portrayed Moulton’s moderate record as out of step with Massachusetts Democrats.
“Massachusetts needs a senator who stands up and fights back, a senator who never forgets who they are fighting for,” Markey said during his victory speech. “That has been the mission of my life, and it always will be.”
Markey reframes generational-change argument
Moulton repeatedly questioned what Markey had accomplished during five decades in elected office and what he could achieve during another Senate term.
Markey countered that political change should be measured by ambition and policy rather than a candidate’s age.
“Generational change isn’t about compromising, to do the small things better,” Markey said Tuesday. “It’s about fighting to do the big things best.”
The victory marked Markey’s second successful defense against a prominent younger opponent.
In 2020, he defeated Rep. Joe Kennedy III by aligning himself closely with the Democratic Party’s progressive wing.
Moulton concedes and backs Markey
Moulton conceded Tuesday night and said he would support Markey in the general election.
“Challenging the establishment and calling for a new generation of leadership isn’t easy. But it is necessary,” Moulton told supporters. “We started conversations that needed to happen.”
“We didn’t achieve our goal tonight, but I am confident others will be inspired to buck the system when they’re told to wait their turn,” he added.
Moulton’s campaign did not succeed in replacing Markey but reinforced a broader national debate within the Democratic Party over leadership turnover and the role of senior incumbents.
Markey favored in November election
Markey will face Republican John Deaton in the November general election.
Deaton was unopposed in Tuesday’s Republican primary. He challenged Democratic Sen. Elizabeth Warren in 2024 but lost by approximately 20 percentage points.
Because Massachusetts strongly favors Democrats in statewide elections, the Democratic primary was widely considered the most difficult stage of Markey’s reelection campaign.
The incumbent is expected to enter the general election as the strong favorite.
Transgender rights define the campaign
Moulton’s previous comments about transgender athletes became one of the primary’s most consequential issues.
In 2024, Moulton said he did not want his daughters competing against transgender girls in sports.
Critics accused him of echoing Trump’s arguments against transgender athletes participating in girls’ and women’s competitions.
Markey repeatedly raised the remarks while arguing that Moulton was not sufficiently aligned with Massachusetts’ progressive electorate.
Moulton later apologized, saying he had not intended to hurt transgender people. He also emphasized his support for legislation protecting other transgender rights.
“If you’re in the trans community or you’re a trans kid feeling the weight of the Trump administration and the Supreme Court, you matter,” Moulton said during an August debate. “You’re valued, and I will always have your back.”
His apology did not prevent the issue from remaining central to Markey’s case against him.
Moulton’s political and military background
Moulton enlisted in the Marine Corps following the Sept. 11, 2001attacks and served four tours in Iraq.
He was first elected in 2014 to represent Massachusetts’ 6th Congressional District.
Moulton briefly sought the Democratic presidential nomination in 2020 before ending his campaign after several months.
His Senate campaign represented his most prominent attempt since then to move into higher office.
Markey’s career spans five decades
Markey has been a fixture in Massachusetts politics since the 1970s.
He represented the state’s 7th Congressional District in the U.S. House from 1976 until winning election to the Senate in 2013.
Markey has maintained support among progressives by emphasizing climate policy, healthcare and resistance to Trump’s agenda.
His victory demonstrated that many Democratic voters viewed his experience as an asset rather than a reason to replace him.
Antoine Hilaire, a 76-year-old Markey voter in Brockton, said age could provide valuable experience and judgment.
“If the older one is doing the better job, I don’t know,” Hilaire said. “He’s doing a good job. It’s not a big, big, big problem.”
Lynch defeats Roath in 8th District
Longtime Rep. Stephen Lynch also defeated a younger Democratic challenger.
Lynch, 71, prevailed over 39-year-old attorney Patrick Roath in the 8th Congressional District, which includes parts of South Boston.
Roath had campaigned against “wait-your-turn” politics and argued that the district needed new leadership.
Lynch, who has held the seat since 2001, stressed the value of his experience and influence inside Congress.
Recent Connecticut upset did not carry over
Roath’s campaign had hoped to benefit from former Hartford Mayor Luke Bronin’s victory over longtime Connecticut Rep. John Larson in August.
Bronin successfully campaigned on generational change while challenging an established Democratic incumbent.
That result raised the possibility that similar frustration might threaten senior lawmakers in neighboring Massachusetts.
Tuesday’s results showed that Massachusetts Democratic voters were less willing to remove their veteran incumbents.
Neal defeats progressive challenger
Rep. Richard Neal, 77, defeated 39-year-old public school teacher Jeromie Whalen in western Massachusetts’ 1st Congressional District.
Neal, the dean of New England’s House delegation, was first elected in 1988.
Whalen ran to Neal’s left, supporting Medicare for All and questioning whether the incumbent had done enough to oppose Trump’s agenda.
Our Revolution, the progressive organization founded by Vermont Sen. Bernie Sanders, endorsed Whalen.
Despite that support, Neal secured the nomination and advanced to the November general election.
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