Massachusetts's most populous county tilts heavily Democratic in every cycle
Home to Cambridge, Lowell, and a dense arc of Boston suburbs, Middlesex combines elite university towns with working-class post-industrial cities to produce some of the most lopsided Democratic margins in the Northeast, hitting D+39.2 in 2024.
Contextual statewide polling for Massachusetts. County pages stay rooted in county returns, but live statewide polling helps frame the current cycle.