Katherine Clark, 2026 Massachusetts 5th District House Democratic candidate
Katherine Clark*
DEMOCRATIC
US House of Representatives (D-MA)
2013 – Present
Massachusetts state flag

Massachusetts 52026 HOUSE POLLS

Republicans, 2026 House candidate
Republicans
REPUBLICAN

2026 Massachusetts 5th District House Forecast:

The Pollsmax 2026 Massachusetts 5th District House forecast currently gives Democrat Katherine Clark a 99.9% chance of defeating the Republican nominee. Pollsmax projects Clark to receive 75.7% of the vote compared with 24.4% for the Republican nominee, a projected Democratic margin of 51.3 percentage points. The model currently rates the race as Solid Democratic. The forecast is updated using 100,000 simulations incorporating polling and race fundamentals. See the Pollsmax forecast methodology.

The 2026 Massachusetts 5th District House election features Democrat Katherine Clark and Republican TBD. Incumbent Representative Katherine Clark is seeking reelection to a eighth term. In 2024, Kamala Harris won Massachusetts' 5th congressional district by 16.5%, and the election for the district's House seat is rated as solid Democratic in 2026.

Year
2026
Race
House
District
MA-5
Democratic candidate
Katherine Clark
Republican candidate
TBD
Incumbent / open seat
Katherine Clark
Forecast rating
Solid D
Projected vote
75.7% D / 24.4% R
Projected margin
D +51.3
Forecast odds
99.9% D / 0.1% R
Forecast last updated
12:00 AM on September 30, 2026
Polling average
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Polling average margin
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Polling last updated
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Polls included
0
Latest poll
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