Called Nov 3Unofficial results
Massachusetts's 5th District
U.S. House · Massachusetts
Katherine M. Clark won without an opponent on the ballot.
Katherine M. ClarkDemocrat · winner · incumbent
100.0%206,925
Katherine M. Clark won without an opponent on the ballot.75% of the expected vote counted · 206,925 votes
Source: civicAPI unofficial results and race callsUpdated Nov 7, 2026, 3:00 PM ET
Where the race moved
Against the 2024 presidential vote
The seat's recent races
Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)
Money in this race
Each line compares the two campaigns on one scale.
Katherine ClarkNo Republican
$5M
Raised by the campaign
—
$5.1M
Spent by the campaign
—
$1.2M
Cash on hand
—
Campaign money: FEC, through Oct 14, 2026.
Source: FEC campaign filingsUpdated Oct 14, 2026
Pre-election forecast (final, Nov 3)
Our model's last run before Election Day, Nov 3, 2026. It no longer updates.
No Republican was on the ballot, so the model gave the seat to Katherine Clark without simulating it.
How the forecast works →The candidates
Changes to this page
- · Race called for Clark.