Flipped from RepublicanCalledUnofficial resultsIncumbent defeated

Connecticut Senate District 30

Connecticut State Senate · Connecticut

Aaron Zimmer flipped the seat for Democrats, winning by 3.3 points over Stephen Harding.

Fusion voting

Aaron ZimmerDemocrat · winner
51.6%22,840
Stephen HardingRepublican · incumbent
48.4%21,383
44,223 votes

Source: Connecticut Secretary of the State unofficial resultsUpdated Nov 7, 2026, 12:54 PM ET

Where the race moved

Against the 2024 presidential vote

The seat's recent races

EvenR+7.62022 SenateR+7.22024 SenateR+0.62024 Pres.D+3.32026 Senate

Source: Past results: 99chambers results archive (MEDSL, Klarner, state election offices)

Money in this race

Each line compares the two campaigns on one scale.

Aaron ZimmerStephen Harding
$152.5K
Raised by the campaign
$152.8K
$130.5K
Public matching funds
$131.2K
$145.4K
Spent by the campaign
$118.6K
$7.1K
Cash on hand
$34.2K

Campaign money: Connecticut State Elections Enforcement Commission, through Oct 27, 2026; Connecticut State Elections Enforcement Commission, through Oct 25, 2026.

Source: Connecticut State Elections Enforcement Commission campaign filingsUpdated Oct 27, 2026

Pre-election forecast (final, Nov 3)

Our model's last run before Election Day, Nov 3, 2026. It no longer updates.

Aaron Zimmer
56%
Stephen Harding
44%
Projected margin
D+1.2
How the forecast works →