Ed Markey won the Markey Moulton Massachusetts primary by a commanding 65–35 margin, according to The Nation, ending a generational challenge from US Representative Seth Moulton that had put the 80-year-old senator’s age and grasp of technology at the centre of Democratic politics.
Moulton, 47, had built his campaign around a call for generational change, arguing Markey (who would be 86 at the end of another term) was too old to represent voters confronting problems that did not exist when Markey entered Congress 50 years ago.
The result hands Markey a clear mandate from Massachusetts Democrats. He will now face Republican John Deaton in the general election in November, according to PBS News. Deaton lost to Senator Elizabeth Warren by about 20 points in 2024.
AI debate put Markey Moulton Massachusetts primary in national spotlight
The contest drew national attention after a debate exchange in which Markey was asked whether he uses AI platforms such as Claude or ChatGPT. He replied that he uses ‘whatever is inside of my iPhone or my iPad, whatever comes up’ and said he does not know ‘what companies my iPad may be using.’
Moulton seized on the answer immediately. ‘Senator, if you don’t even know what you’re using on your phone or your iPad, like this is why we need a new generation of leaders to regulate these technologies,’ he said, calling Markey’s loose grasp of the technology ‘potentially disqualifying.’
Markey pushed back, saying ‘it doesn’t make any difference whether it’s called Siri or it’s called Claude,’ and pointing to legislation he has introduced to regulate AI’s effects on children, workers, civil rights and the environment.
Young voters split on whether age or policy mattered more
The race exposed a division among younger Democratic voters that did not break cleanly along generational lines.
Arsen Bagdassarian, an 18-year-old supporter of Moulton and incoming freshman at Boston’s Northeastern University, said the AI exchange reinforced his concern that Markey cannot understand the technologies he would be asked to regulate. ‘To be frank, I didn’t expect him to be as clueless as he really was on that topic,’ he said.
Molly Blander, an 18-year-old incoming Tufts University freshman also backing Moulton, pointed to artificial intelligence and social media as forces that have reshaped her generation’s mental health. She cited Moulton’s work to establish 988 as the national suicide and crisis lifeline. ‘Social media has created a modern mental health problem, so we need modern solutions,’ she said.
But Markey held endorsements from the High School Democrats of America and the College Democrats of America, as well as from US Representative Alexandria Ocasio-Cortez of New York and New York City Mayor Zohran Mamdani.
Matt Kelly, president of the UMass Lowell College Democrats and a Markey backer, acknowledged the AI answer was poor. ‘I’ll admit it wasn’t a good answer,’ he said. Even so, Kelly argued that understanding how to govern a technology matters more than knowing how to use it. ‘Just because he has a younger face doesn’t mean that he has younger ideas,’ Kelly said of Moulton.
Milan van Dam, 17, national chair of the High School Democrats of America, said generational leadership is ‘less about an age on a Wikipedia page’ than a candidate’s ideas and consistency over time. Abby Shadden, a 21-year-old Emmanuel College student, pointed to Markey’s co-authorship of the Green New Deal and his early support for Medicare for All. ‘There is this idea that younger people are just automatically more progressive when, in this case, it is very much not true,’ she said.
Markey’s 2026 general election contest against Deaton now begins. Deaton’s 2024 performance against Warren (losing by about 20 points) gives Markey a historically favourable baseline in a heavily Democratic state where the primary has often decided the outcome.

