Byron Dorgan
Party: Democrat
Chamber: Senate
State: North Dakota
| Year | Grade | Score | Rank |
|---|---|---|---|
| 2010 | F | 4% | 90 |
| 2009 | F | 13% | 48 |
| 2008 | D | 20% | 52 |
| 2007 | F | 5% | 90 |
| 2006 | F | 12% | 86 |
| 2005 | F | 10% | 77 |
| 2004 | F | 13% | 86 |
| 2003 | F | 11% | 100 |
| 2002 | F | 14% | 86 |
| 2001 | F | 6% | 94 |
| 2000 | F | 12% | 85 |
| 1999 | F | 7% | 84 |
| 1998 | F | 12% | 89 |
| 1997 | F | 17% | 87 |
| 1996 | F | 31% | 70 |
| 1995 | F | 18% | 85 |
| 1994 | D | 26% | 61 |
| 1993 | D | 25% | 61 |