HOUSE
Massachusetts MA-03 House2026
RACE AT A GLANCE
RACE TYPE
Incumbent running
Lori Trahan (D)
COOK PARTISAN VOTING INDEX
Last updated : Nov 17, 2025D +50
R +50
D +11
Race summary
Massachusetts's 3rd District swung significantly to the right between 2020 and 2024, largely driven by Trump’s gains among Hispanic voters.Key Dates
Filing Deadline: Aug 25, 2026
Primary Election: Sep 1, 2026
INCUMBENT
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INCUMBENT
Full Bio:
TRAHAN, Lori, a Representative from Massachusetts; born in Lowell, Middlesex County, Mass., October 27, 1973; graduated from Lowell High School, Lowell, Mass., 1991; B.S., Georgetown University, Washington, D.C., 1995; attended Harvard University, Cambridge, Mass., 2013; businesswoman; staff, United States Representative Marty Meehan of Massachusetts, 1995-2005; elected as a Democrat to the One Hundred Sixteenth Congress (January 3, 2019-present).
Source: Bioguide
CANDIDATES
Republicans
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DISTRICT DATA
Massachusetts - 03
Northeast: Lowell, Lawrence
Population Breakdown
Source: 2020 Census (VAP) for 2026
Past Presidential Results from this District
2024 Election Results
Source: Dave Leip
2020 Election Results
Source: Dave's Redistricting/VEST
RACE ANALYSIS
Race Analysis
Updated: Jun 3, 2026
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