Missouri GOP Congressman Onder wins re-election; district includes Columbia and Jefferson City

By Zimmer Communications
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An east-central Missouri congressman who represents south Columbia as well as Jefferson City and Fulton on Capitol Hill wins a second term.

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U.S. Rep. Bob Onder (R-St. Charles County) speaks at the 60th anniversary of the Mizzou Research Reactor (MURR) in Columbia at the EquipmentShare 1926 Club at Memorial Stadium (October 2026 photo courtesy of Congressman Onder’s Facebook)

U.S. Rep. Bob Onder (R) is an outspoken supporter of President Donald Trump and serves on the House Judiciary and Education committees.

U.S. Rep. Bob Onder (R-St. Charles County) talks to voters and diners at Montgomery City’s Sugar and Spice Laura’s Delights (November 2, 2026 photo courtesy of Congressman Onder’s Facebook page)

Congressman Onder beat St. Peters Democrat Bethany Mann in the Third District. The vote was 149,239 to 125,271. She campaigned on strong public schools, affordable health care and clean water.