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MO · Candidate

Bethany Mann

DCandidate

On the ballot Nov 3, 2026: U.S. House · Missouri's 3rd District

Biography

Bethany Mann is the Democratic nominee for Missouri's 3rd District. An environmental chemist who has tested for contaminants including PFAS, she previously ran for the seat in 2022 and 2024 and is campaigning on science-based policy, rural infrastructure investment and healthcare access.[1][2]

Mann was born in Normal, Illinois, was homeschooled, and attended Wright City High School in Missouri; according to her campaign website, she grew up in Foristell and lives in St. Peters.[2][3] She earned an associate degree from Lincoln Land Community College (2008) and a bachelor's degree from the University of Illinois Springfield (2010).[2] She describes herself as an environmental chemist and technology professional, a working mother of three and a lifelong Missourian, with work in agriculture, energy and water infrastructure including testing for contaminants such as PFAS; Ballotpedia lists projects with the EPA and USDA.[2] Mann is the daughter of an Air Force veteran and granddaughter of a WWII veteran, according to her Ballotpedia survey.[2]

Mann serves on the executive board of the Kansas Laboratory Education Association and as Vice Chair of the Missouri Democrats LGBTQIA+ Caucus.[2] She was the Democratic nominee for Missouri's 3rd District in 2022, losing to Blaine Luetkemeyer with 34.9% of the vote, and again in 2024, losing to Bob Onder with 35.3%.[2] On August 4, 2026, she won the Democratic primary with 69.1% of the vote over Tommy Holstein and Paul Wilson.[2]

  1. 1.United States House of Representatives elections in Missouri, 2026 · Ballotpedia · 2026-09-25 Reference
  2. 2.Bethany Mann - Ballotpedia Candidate Connection survey · Ballotpedia Candidate Connection survey · 2026 Candidate's own words
  3. 3.Bethany Mann for Congress · Bethany Mann for Congress Candidate's own words

Researched from the cited sources on 2026-10-21.

On the ballot