Wisconsin Senate District 15

About this race

Christopher Dean (Serving People Not Parties), Scott Fleming (Republican), Mark Spreitzer (Democratic) meet on the November 3 ballot; Mark Spreitzer is the sitting member, per the Wisconsin Elections Commission's incumbent listing and the Legislature's roster. Wisconsin has no runoffs; the August 11 partisan primary set each party's nominee, and unopposed nominees still print. The field is the Wisconsin Elections Commission's certified Candidates on Ballot list for the November 3, 2026 general election (read September 7, 2026). This seat is elected by district; only the district covering your address appears on your ballot.

What this office does

State legislator. State legislators write and vote on state laws and the state budget, which fund schools, roads, prisons, universities and health programs, and set the rules for local governments and elections. Each member represents one district and serves on committees that shape bills before a floor vote. Terms are two years in most state houses and four in most state senates.

This race. Elected by district: only voters who live in the district see this race on their ballot. The sitting officeholder, Mark Spreitzer, is on the ballot.