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Data sourced from FEC, Polymarket, and public records.

Map/IA/Mark Costello

RepublicanCurrent Officeholder

Mark Costello

Iowa State Senate District 8

Iowa State Senate District 8

State

Iowa State Senate District 8

District 8

Party

Republican

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Data: FEC · Polymarket · Public records

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Political Transparency Project

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Data sourced from FEC, Congress.gov, Polymarket, and public records.

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