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Wisconsin · Wisconsin Senate District 15 · Updated Oct 16, 2026

Mark Spreitzer

DemocraticIncumbent

Electoral history

Earlier races in Wisconsin, newest first, matched by name in the results archive.

  1. 2022

    State Senate · SD-15 Nov 8, 2022

    D · 61.4% · 46,192 votes

    Won
  2. 2020

    State Assembly · AD-45 Nov 3, 2020

    D · 54.9% · 14,451 votes

    Won
  3. 2018

    State Assembly · AD-45 Nov 6, 2018

    D · 80.2% · 14,198 votes

    Won
  4. 2016

    State Assembly · AD-45 Nov 8, 2016

    D · 100.0% · 17,867 votes

    Won
  5. 2014

    State Assembly · AD-45 Nov 4, 2014

    D · 100.0% · 12,856 votes

    Won
  6. 2014

    State Assembly · AD-45 primary · Aug 12, 2014

    D · 54.1% · 1,993 votes

    Won

Opponents in 2026