2010 Ohio Attorney General election|
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| Turnout | 46.3% | 
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Congressional district resultsDeWine:      40–50%      50–60%      60–70%Cordray:       40-50%      50–60%      60–70%      70–80%
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The 2010 Ohio Attorney General election was held on November 2, 2010, concurrently with other statewide offices including a Class 1 Senate election as well as the Governor election. Incumbent Democratic Attorney General Richard Cordray who was elected in a 2008 special election ran for a full 4-year term but was defeated by Republican challenger and former 2-term United States senator Mike DeWine. Being decided by 1.2%, this was the closest statewide election in Ohio. Cordray and DeWine faced off again in Ohio's 2018 Governor election; DeWine won that election by 3.7 percentage points.