 | If the Democratic Primary for U.S. House of Representatives were today, would you vote for... (names rotated) Steve Marks? Kurt Schrader? Or some other Democrat? |
| TRACK POINTS | 04/16/08 | 05/08/08 | 05/19/08 | n/a | n/a | n/a | n/a | n/a | n/a |
| ± 4.1% | ± 4% | ± 3.6% | n/a | n/a | n/a | n/a | n/a | n/a |
| ALL | ALL | ALL | n/a | n/a | n/a | n/a | n/a | n/a |
| Marks | 20% | 14% | 19% | n/a | n/a | n/a | n/a | n/a | n/a |
| Schrader | 23% | 37% | 43% | n/a | n/a | n/a | n/a | n/a | n/a |
| Other / Undecided | 57% | 49% | 38% | n/a | n/a | n/a | n/a | n/a | n/a |
| Total | 100% | 100% | 100% | n/a | n/a | n/a | n/a | n/a | n/a |