15th Senate District

District

Candidates

Senate District 15 Candidates on the November Ballot
Incumbent: Mark Spreitzer
Jan 1 thru Oct 19
receipts disbursements
Serving People Not Parties
Christopher Dean $3,212.56 $2,154.42
Republican
Scott Fleming $15,514.35 $11,336.10
Democratic
Mark Spreitzer $94,734.88 $109,115.61
Data from the 2026 Fall Pre-Election Report. Any amended reports might not yet be shown.

Past election results

Election Results in Wisconsin State Senate District 15
votes
Dem. %1
margin (Dem. - Rep.)
total Dem. Rep. votes points2
2016 President 83,496 43,165 34,397 55.7% +8,768 +11.3
2016 Senator 82,535 46,034 33,817 57.7% +12,217 +15.3
2018 Governor 73,939 42,980 29,064 59.7% +13,916 +19.3
2018 Senator 73,560 46,119 27,357 62.8% +18,762 +25.5
2020 President 90,830 49,915 39,256 56.0% +10,659 +12.0
2022 Governor 70,056 40,719 28,479 58.8% +12,240 +17.7
2022 Senator 69,756 38,930 30,655 55.9% +8,275 +11.9
2024 President 94,331 50,042 42,763 53.9% +7,279 +7.8
2024 Senator 93,347 50,442 40,539 55.4% +9,903 +10.9
2024 NA NA NA NA NA NA NA
1 Share of the two-party vote. For Rep. share, subtract from 100.
2 Dem % of the two-party vote minus Rep % of the two-party vote
Election results allocated into 2024 district boundaries based on population overlap. Calculations by John Johnson (johndjohnson.info).

District demographics