Democrat · Missouri's 3rd District · 2026
Bethany Mann
Mann grew up in Foristell and built a career in chemistry, testing everything from farmers' corn and soybeans to contaminants in drinking water.
Biography
Bethany Mann is a working mother and environmental chemist who grew up in Foristell and now lives in St. Peters.1 When discussing affordability, she names the price of chicken nuggets among the everyday costs she wants to bring down.2
Her professional work has included helping farmers test corn, soybeans and forage and participating in PFAS testing and remediation work.2 Her campaign also describes work helping communities test for lead and other contaminants.1 She is a member of Communications Workers of America Local 6300.2
Mann previously ran for the Third Congressional District in 2022 and 2024.3 She is again the district's certified Democratic nominee for the November 2026 election.4 Her education agenda includes public school funding, childcare, preschool and opportunities for further education and union apprenticeships.2 She also supports higher teacher pay, public library funding and better workplace safety for union labor.2
Mann supports expanded health care access, lower prescription prices and stronger protections for clean water, including addressing PFAS contamination affecting service members and first responders.2 She also calls for reliable roads, bridges, broadband and water systems, and protection for patients' reproductive decisions.1 Her data center proposal calls for a construction moratorium, community consent and continued pay for union workers.1