John Jagler is a member of the Wisconsin State Senate, representing District 13. He assumed office on April 23, 2021. His current term ends on January 4, 2027. Jagler is running for re-election to the Wisconsin State Senate to represent District 13. He declared candidacy for the Republican primary scheduled on August 11, 2026. Jagler represented District 37 in the Wisconsin State Assembly from 2013 to 2021.