California Assembly District 66
California State Assembly · California
Paul Seo held the seat for Democrats, winning by 21.1 points over Sara Deen.
Top-two primary
Source: California Secretary of State unofficial resultsUpdated Nov 7, 2026, 12:54 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.
Other candidates' campaigns: Sara Deen $1.2M.
Campaign money: California Secretary of State (Cal-Access), through Oct 17, 2026.
Source: California Secretary of State (Cal-Access) campaign filingsUpdated Oct 17, 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 Sara Deen without simulating it.
How the forecast works →