Senator Markey fields national progressives to make his case in primary race against Moulton

US Sen. Ed Markey (D-Mass.) addresses supporters during a rally at the IBEW Local 103 facility in Boston, Massachusetts on August 29, 2026.

(Photo by Craig F. Walker/The Boston Globe via Getty Images)

'Testament to the Power of the Progressive Movement': Ed Markey Beats Seth Moulton in Landslide

One Markey supporter called his victory "a rejection of the idea that generational change has to come at the expense of bold, progressive leadership."

Progressive US Sen. Ed Markey, a champion of Medicare for All and the Green New Deal, decisively fended off a Democratic primary challenge from his right on Tuesday, defeating Rep. Seth Moulton by nearly 30 percentage points in a contest that focused heavily on the incumbent senator's age.

Markey, 80, and his supporters—including prominent young Democrats such as Rep. Alexandria Ocasio-Cortez (D-NY)—rejected the notion that "generational change" necessarily means electing the youngest candidate in the race. Markey said in his victory speech Tuesday night that "generational change isn’t about compromising to do the small things better—it’s about fighting to do the big things best."

“Tonight is a testament to the power of the progressive movement,” Markey added. “It is a progressive movement fueled by young people, demanding more from their leaders, and it’s your voices that are the ones we need to hear right now.”

Moulton, a 47-year-old member of the conservative New Democrat Coalition, attempted to capture momentum that has propelled other younger candidates to victory over entrenched incumbents by making Markey's age and lengthy tenure in Congress—rather than his policy agenda—a central focus of Tuesday's contest. In a recent interview with MS NOW, Moulton removed ideology and policy from the equation completely, lumping Markey in with Sen. Mitch McConnell (R-Ky.) and late Sen. Lindsey Graham (R-SC) as well as elderly Democrats such as former President Joe Biden.

The Democratic representative, who opposes Medicare for All and attacked Sens. Bernie Sanders (I-Vt.) and Elizabeth Warren (D-Mass.) from the right during his ill-fated 2020 presidential bid, also falsely claimed in a campaign ad that he and Markey "want the same things."

Moulton's age-centric message failed, according to Markey's backers, because voters in Massachusetts and elsewhere are hungry for progressive politics, not just younger politicians.

"We don’t want younger politicians with older politics,” Tyler Hack, the 21-year-old executive director of the Christopher Street Project, a trans rights group, said at a rally for Markey over the weekend.

Joseph Geevarghese, executive director of Our Revolution, said in a statement that "tonight's victory isn't just a win for Ed Markey or for our progressive movement. It's a rejection of the idea that generational change has to come at the expense of bold, progressive leadership."

"Massachusetts voters understood the difference between changing the age of our leaders and changing the politics of our country," said Geevarghese. "Ed Markey has never settled for the moderate Democratic establishment or accepted the status quo simply because Washington said change was impossible. From staking his political capital on the Green New Deal, to fighting for Medicare for All, abolishing ICE, and taking on corporations and billionaires rigging our economy, Ed has consistently been willing to go where the Democratic Party needs to go—often before the rest of Washington gets there."

"That's the lesson from Massachusetts tonight," he added. "The future doesn't belong to the youngest politician in the room. It belongs to the people with the courage to fight for it."

Markey, who is heavily favored to win the general election in November, has said a new six-year Senate term would be his last.

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