Spreitzer Wins Wisconsin 15th Senate Seat

Preliminary general election tallies show Mark Spreitzer winning re-election to the state Senate, with Ellen Schutt also elected in the 11th District.

Updated on Nov. 4, 2026 in Elections

Bold flat-color editorial illustration of a capitol dome silhouette over a flat horizon, evoking Wisconsin legislative election results. — Mark Spreitzer won re-election to Wisconsin's 15th Senate District and Ellen Schutt was elected to the 11th District, according to preliminary general election tallies. AI Illustration. Upload story photo >

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Mark Spreitzer won re-election to the Wisconsin 15th Senate District seat in the general election, according to preliminary tallies. Ellen Schutt was elected to the 11th Senate District seat, and Clinton Anderson won re-election to the 45th Assembly District seat.

Why it matters

The results determine who will represent these Wisconsin districts in the state Legislature. Schutt succeeds Republican Steven Nass, who announced his retirement earlier this year after 12 years in the seat.

Preliminary county tallies show Spreitzer leading Rock County with over 30,000 votes, ahead of Fleming at over 20,000 and Dean at around 2,700, while Schutt drew over 20,000 votes in Walworth County. Janesville's tallies were still pending at 10:45 p.m. Tuesday, leaving the Rock County figures unofficial.

The players

Mark Spreitzer

Spreitzer is a Beloit politician who previously served on the Beloit City Council and in the Wisconsin Assembly before his election to the state Senate.

Ellen Schutt

Schutt is a Wisconsin politician who served in the 31st Assembly District from 2023 to 2025 and was elected to the 11th Senate District seat.

Clinton Anderson

Anderson is a Beloit politician who was first elected to the Wisconsin Assembly in 2022 and won re-election to the 45th Assembly District.

Steven Nass

Nass is a Republican who held the Wisconsin 11th Senate District seat for 12 years and announced his retirement earlier this year.

The details

Spreitzer, a Beloit Democrat, previously served on the Beloit City Council from 2011 to 2015 and in the Wisconsin Assembly from 2015 to 2023 before winning his first Senate term in 2023. The 15th Senate District includes parts of Rock, Walworth and Jefferson counties.

Spreitzer served on the Beloit City Council from 2011 to 2015.
Spreitzer served in the Wisconsin Assembly from 2015 to 2023.
Anderson was first elected to the Wisconsin Assembly in 2022.
Spreitzer was first elected to the Wisconsin Senate in 2023.
Preliminary general election tallies were reported Tuesday night, November 3, 2026.

Political Context

Results in Wisconsin's 11th and 15th Senate Districts determine which party and which representatives hold these seats in the state Senate. The 11th District seat had been held by Republican Steven Nass for 12 years before his retirement.

Voters in the 11th, 15th and 45th districts will be represented by the winners beginning with the next legislative session. Because Janesville's tallies were still pending, final results in parts of Rock County may shift.

The takeaway

Preliminary results can change as remaining county tallies are finalized, so readers should check official canvass results before drawing firm conclusions about these races.