Spreitzer served four terms in the Wisconsin State Assembly, from 2015 to 2023, and before that was a member of the Beloit City Council.
Spreitzer received his bachelor's degree in political science from Beloit College.
On November 4, 2014, Spreitzer was elected to his first term in the Wisconsin State Assembly[1] to succeed Janis Ringhand.
A Democrat,[2] Spreitzer served on eight committees during the 2015–16 legislative session: Jobs and the Economy, Mining and Rural Development, Natural Resources and Sporting Heritage, Public Benefit Reform, Workforce Development, Joint Committee for Review of Administrative Rules, Speaker's Taskforce on Youth Workforce Readiness, and the Legislative Council Study Committee on Rural Broadband.
[3] He is one of three openly LGBT members of the Wisconsin State Legislature, alongside Senator Tim Carpenter and Representative Todd D. Novak.