| Year | Age | State | Party | Office | District | Stage | Pos | Votes | % |
|---|---|---|---|---|---|---|---|---|---|
| 1998 | DE | D | Treasurer | General | 1 | 103,407 | 58.1% | ||
| 2002 | DE | D | Treasurer | General | 1 | 147,390 | 66.2% | ||
| 2002 | DE | D | Treasurer | Primary | 1 | 147,930 | 100.0% | ||
| 2006 | DE | D | Treasurer | General | 1 | 174,388 | 70.5% | ||
| 2008 | DE | D | Governor | Primary | 1 | 37,849 | 51.2% | ||
| 2008 | DE | D | Governor | General | 1 | 266,861 | 67.5% | ||
| 2012 | DE | D | Governor | General | 1 | 275,993 | 69.3% | ||
|
Age: Age as of July 1 of the year pertaining to this election. |