Missouri › St Charles County › County Executive
5 candidates are tracked for County Executive on the November 3, 2026 ballot: Steve Ehlmann, Bill Eigel, Jason Law, Arnie "AC" Dienoff and David Veneziano. Candidate information follows official St Charles County election filings; verify with the official election office linked below.
Four Republicans meet on the August 4 ballot; the winner faces unopposed Democrat David Veneziano on November 3, per the county Election Authority's official voter guide and Spectrum News.
The incumbent county executive since 2007, seeking a sixth term, per the county's official voter guide. A former teacher and lawyer, he has served as a state representative, state senator, circuit judge, and director of administration, per his voter-guide submission.
2026 priorities
- Keep the county real property tax rate at zero for an 11th year, per his voter-guide response
- Complete jail expansion, a drug treatment center, and parks projects, per his response
- Complete I-64 and I-70 improvements and a regional law enforcement training center, per his response
A former state senator who ran for governor in 2024, per Fox 2 News and his campaign site.
2026 priorities
- Personal property and real estate tax cuts, per his campaign site
- Support for law enforcement and first responders, per his site
- Density guidelines opposing new apartments and data centers, per Spectrum News forum coverage
Source: candidate campaign site, roster verified 2026-08-29.
Campaign site →
Mayor of Lake St. Louis from 2021 to 2025 and a lieutenant colonel with the St. Louis County Police Department, where he has served since 1998, per his campaign site and STLPR.
2026 priorities
- Keep St. Charles County safe, per his campaign site
- Cut county taxes, per his site
- Smart, managed growth, per his site and STLPR
Source: candidate campaign site, roster verified 2026-08-29.
Campaign site →
Described by Spectrum News and Fox 2 News as a longtime self-styled public advocate at O'Fallon City Council meetings. He did not respond to the county's voter-guide survey.
Unopposed on the Democratic side. He holds a physics degree and an MBA and has spent about twenty years in biotechnology manufacturing quality roles, currently as site quality head at a nonprofit blood-testing lab, per his voter-guide submission.
2026 priorities
- Housing reform including renter protections, per his voter-guide response
- Term-limit and campaign-finance reform for county offices, per his response
- Regional cooperation with neighboring counties, per his response
