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

Updated October 22, 2026, 09:28 UTC

State legislatures › Wisconsin Senate

Wisconsin Senate District 23

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

<1% chance of a Democratic win · Romaine Quinn (R), Jeff Foster (D)

Wisconsin Senate District 23: Forecast (lines redrawn; start rebuilt from 2024 votes)Wisconsin Senate 10: not up in 2026 (held by republican); 2024 president R+20Wisconsin Senate 12: not up in 2026 (held by republican); 2024 president R+25Wisconsin Senate 24: not up in 2026 (held by republican); 2024 president R+16Wisconsin Senate 25: chance of a Democratic win 10%Wisconsin Senate 29: chance of a Democratic win 2%Wisconsin Senate 31: chance of a Democratic win 79%Wisconsin Senate District 23: Forecast (lines redrawn; start rebuilt from 2024 votes)31291024122523
Safe DLean DToss-upLean RSafe RHatched: not up in 2026 (shaded by holder) · dashed: other state

District 23 is safe Republican. Of its 6 neighbouring districts, 1 favours Democrats, 5 favour Republicans.

StatusForecast (lines redrawn; start rebuilt from 2024 votes)
Chance of a Democratic win<1%
Likely margin (80% range)R+46 to R+22, middle R+34
CandidatesRomaine Quinn (R), Jeff Foster (D)
Candidate list fromwikipedia
Current memberJesse James
Linesredrawn since the last election; Census figures below are on the earlier lines

Who lives here

Census Bureau, American Community Survey 2019-2023.

This districtWisconsin
Median household income$72,108$75,670
Bachelor's degree or more (25+)24%33%
Median age4040
White (not Hispanic)90%79%
Black1%6%
Hispanic3%8%
Asian1%3%
Born abroad2%5%
Jobs in manufacturing18%18%
Jobs in farming or mining5%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.