| Year | Age | State | Party | Office | District | Stage | Pos | Votes | % |
|---|---|---|---|---|---|---|---|---|---|
| 1992 | OH | D | U.S. House | District 15 | Primary | 1 | 18,859 | 78.2% | |
| 1992 | OH | D | U.S. House | District 15 | General | 2 | 94,907 | 37.9% | |
| 1998 | OH | D | Attorney General | Primary | 1 | 596,239 | 100.0% | ||
| 1998 | OH | D | Attorney General | General | 2 | 1,240,102 | 37.8% | ||
| 2000 | OH | D | U.S. Senate Class 1 | Primary | 3 | 202,345 | 23.7% | ||
| 2006 | OH | D | Treasurer | Primary | 1 | 499,341 | 100.0% | ||
| 2006 | OH | D | Treasurer | General | 1 | 2,223,282 | 57.9% | ||
| 2008 | OH | D | Attorney General | Special | 1 | 2,890,953 | 56.8% | ||
| 2010 | OH | D | Attorney General | Primary | 1 | 558,810 | 100.0% | ||
| 2010 | OH | D | Attorney General | General | 2 | 1,772,728 | 46.3% | ||
| 2018 | OH | D | Governor | Primary | 1 | 428,159 | 62.2% | ||
| 2018 | OH | D | Governor | General | 2 | 2,067,847 | 46.7% | ||
|
Age: Age as of July 1 of the year pertaining to this election. |