Markey Wins Massachusetts Democratic Primary

Sen. Ed Markey, 80, faces Rep. Seth Moulton, 47, in Tuesday's Massachusetts Democratic Senate primary. Every public poll shows Markey with a substantial lead.

• 60% backed Markey in the latest Emerson College poll, versus 33% for Moulton.
• 390,000 Democratic ballots were already cast early or by mail as of Thursday.
• Markey raised more than $8 million; Moulton raised more than $6 million.
• 82% of self-identified Democrats approved of Markey's job performance in a UMass poll.

Why it matters: The primary pits two recurring Democratic fault lines against each other: progressive versus moderate, and incumbent versus younger challenger.

• Ideology appears to be driving the gap: UMass political scientists found the average Democratic primary voter prefers the more progressive candidate.
• Moulton's past remarks opposing transgender athletes in girls' sports have drawn criticism from Democratic voters in a deep-blue state.

How 41 sources split on this story

Where they split: The core dispute is whether Moulton's generational argument could overcome Markey's progressive brand — or whether ideology simply outranks age in a liberal primary electorate.

What’s next: Moulton is counting on unusually high turnout from outside the core Democratic base.

• Essex County, largely in Moulton's district, is a key geographic battleground.
• Can Moulton generate enough turnout from low-propensity voters to close a double-digit polling gap?
• If Markey wins, does the result signal that progressive credentials reliably insulate incumbents from age-based challenges?