Opinion polling for the United States Senate elections, 2008 Illinois Illinois

| Poll_Source | Dates_administered | Democrat_Dick_Durbin | Republican_Steve_Sauerberg | Lead_Margin |
|---|---|---|---|---|
| Rasmussen Reports | October 13, 2008 | 62% | 31% | 31 |
| St. Louis Post Dispatch/ Research 2000 | September 15-September 18, 2008 | 56% | 35% | 21 |
| Rasmussen Reports | September 17, 2008 | 59% | 35% | 24 |
| Rasmussen Reports | August 12, 2008 | 61% | 33% | 28 |
| Southern Outreach | July 12, 2008 | 52% | 35% | 17 |