The Ballot Brief
Missouri
Candidate profile

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Mary McKenna

Democratic · Missouri · 2026

Running for Presiding Commissioner, Missouri

Top priorities

From the campaign site

  • Wants infrastructure and public safety planning to keep pace with the county's rapid growth
  • Emphasizes accountability and transparency in county government

From other published sources

  • Wants the commission to implement the voter-approved children's mental health sales tax, per The Platte County Landmark Newspaper
Biography

Mary McKenna has spent her career in the communications industry and has lived in Platte County for more than 40 years, per The Platte County Landmark Newspaper. She is the Democratic candidate for Platte County Presiding Commissioner.

Campaign site (opens in a new tab)

On the ballot

Presiding CommissionerMissouri · 2026Platte County sample ballot

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Voting info and more

Voting info and more
How we source this

Profile facts follow official election office filings and the sources cited in each biography. Roster last verified October 16, 2026. Official sources are the final word on who appears on your ballot.

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