John S. Leiber
Republican Incumbent
About
John S. Leiber has served as Wisconsin state treasurer since 2023. He previously worked for the Wisconsin Department of Revenue and as a legislative aide in the State Assembly. He holds a bachelor's degree in history from UW-Parkside and a law degree from the University of Wisconsin Law School. He was unopposed in the August 2026 Republican primary.
Positions on the issues
Supports protecting and growing the Common School Fund, which distributes money annually to K-12 school libraries for materials and technology.
Supports keeping the treasurer's office focused on its existing constitutional and statutory duties rather than adding programs or growing the office.
Supports managing state trust investments with an emphasis on fiscal restraint.
As a Board of Commissioners of Public Lands member, supports keeping the $1.4 billion trust fund strong for public school libraries, the University of Wisconsin, and Wisconsin residents.
Experience
- Wisconsin State Treasurer (2023-present)
- Wisconsin Department of Revenue; State Assembly legislative aide
- UW-Parkside (BA, History); UW Law School (JD)
- Board of Commissioners of Public Lands member
Campaign funding
No widely reported 2026 cycle fundraising total found. Transparency USA lists his top reported contributors as Diane Hendricks ($20,000) and the Republican Party of Wisconsin ($10,000).