The 1986 Ohio State Auditor election was held on November 4, 1986, to elect the Ohio State Auditor. Primaries were held on May 6, 1986. Democratic incumbent Ohio State Auditor Thomas E. Ferguson won re-election in a landslide, defeating Republican Ohio State House Representative Waldo Rose by a two-to-one margin and sweeping every single county except for Allen County.
Democratic primary Candidates Thomas E. Ferguson, incumbent Ohio State Auditor (1975–1995) Campaign Ferguson won renomination unopposed. Results
Republican primary Candidates Waldo Rose, Ohio State House Representative (1973–1986) (Write-in) Campaign Rose was the only one to run for the Republican nomination, running as a write-in candidate. Results
General election Candidates Thomas E. Ferguson, incumbent Ohio State Auditor (1975–1995) (Democratic) Waldo Rose, Ohio State House Representative (1973–1986) (Republican) Results
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