Election forecasts you can inspect.Tested models, shown with their sources and their uncertainty.

Updated October 22, 2026, 09:28 UTC

State legislatures › California Assembly

California Assembly District 13

2026 forecast · Updated October 22, 2026, 09:28 UTC

98% chance of a Democratic win · Rhodesia Ransom (D), Tom Patti (R)

California Assembly District 13: ForecastCalifornia Assembly 11: chance of a Democratic win >99%; 2024 president D+20California Assembly 15: chance of a Democratic win >99%; 2024 president D+33California Assembly 16: chance of a Democratic win >99%; 2024 president D+38California Assembly 22: chance of a Democratic win <1%; 2024 president R+8California Assembly 9: chance of a Democratic win 2%; 2024 president R+24California Assembly District 13: Forecast15161122913
Safe DLean DToss-upLean RSafe RHatched: not up in 2026 (shaded by holder) · dashed: other state

District 13 is safe Democratic. Of its 5 neighbouring districts, 3 favour Democrats, 2 favour Republicans.

StatusForecast
Chance of a Democratic win98%
Likely margin (80% range)D+10 to D+32, middle D+21
CandidatesRhodesia Ransom (D), Tom Patti (R)
Candidate list fromaggregator (The Ballot Brief)
Current memberRhodesia Ransom

How it has voted

On its current lines. Legislative contests and the top-of-ticket vote inside the district.

Legislature 2022uncontested (D)
Governor 2022D+16
Legislature 2024D+14
President 2024D+14
← RepublicanDemocratic →

Who lives here

Census Bureau, American Community Survey 2019-2023.

This districtCalifornia
Median household income$87,436$96,334
Bachelor's degree or more (25+)22%36%
Median age3438
White (not Hispanic)20%35%
Black9%5%
Hispanic44%40%
Asian21%15%
Born abroad27%27%
Jobs in manufacturing10%9%
Jobs in farming or mining4%2%

Initial version. This model was tested on every state legislative election from 1994 to 2024 before publication, forecasting each as if it had not happened. It beat the simple rule “the party that holds the seat keeps it”, and its chamber seat counts were off by 2.9 seats on average (target: under 3). Districts with no two-party race last time are read from their own presidential vote, a change tested in advance that cut their average error from 17 to 13 points. It missed one of its five accuracy targets: in 2024, the calmest year on record, its ranges were wider than they needed to be (92% of results fell inside its 80% ranges; target: at most 88%). Treat the ranges as cautious. The full test record and code.