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Mark Boyko

Mark Boyko has practiced law for twenty years, primarily as an ERISA litigator, per his official House biography. He has served on the Kirkwood School Board and as a director for the St. Louis Area Diaper Bank. He is the Democratic incumbent for Missouri House District 90. No campaign website or questionnaire response was found as of September 6, 2026.

Profile facts follow official election office filings and the sources cited in each biography. Official sources are the final word on who appears on your ballot.

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