| Year | Age | State | Party | Office | District | Stage | Pos | Votes | % |
|---|---|---|---|---|---|---|---|---|---|
| 1998 | 29 | IL | D | Comptroller | Primary | 1 | 632,141 | 100.0% | |
| 1998 | 29 | IL | D | Comptroller | General | 1 | 1,895,273 | 58.6% | |
| 2002 | 33 | IL | D | Comptroller | Primary | 1 | 1,002,585 | 100.0% | |
| 2002 | 33 | IL | D | Comptroller | General | 1 | 2,150,425 | 63.2% | |
| 2004 | 35 | IL | D | U.S. Senate Class 3 | Primary | 2 | 294,717 | 23.7% | |
| 2006 | 37 | IL | D | Comptroller | General | 1 | 2,198,071 | 64.3% | |
| 2010 | 41 | IL | D | Governor | Primary | 2 | 453,677 | 49.5% | |
|
Age: Age as of July 1 of the year pertaining to this election. |