Poll Chart
2012 North Dakota Senate: Berg vs. Heitkamp
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| Pollster | Dates | Pop. | Heitkamp | Berg | Undecided | Margin | |
|---|---|---|---|---|---|---|---|
| Mason-Dixon | 10/26 - 10/28/12 | 625 LV | 45 | 47 | 8 | Berg +2 | |
| Pharos Research Group | 10/26 - 10/28/12 | 752 LV | 50 | 48 | - | Heitkamp +2 | |
| Mellman Group (D-Heitkamp) | 10/21 - 10/24/12 | 600 LV | 48 | 44 | 7 | Heitkamp +4 | |
| Pharos Research Group | 10/19 - 10/21/12 | 807 LV | 49 | 48 | - | Heitkamp +1 | |
| Mellman Group (D-Heitkamp) | 10/16 - 10/19/12 | 600 LV | 45 | 42 | 13 | Heitkamp +3 | |
| Rasmussen | 10/17 - 10/18/12 | 600 LV | 45 | 50 | 5 | Berg +5 | |
| Essman/Research | 10/12 - 10/15/12 | 500 LV | 40 | 50 | 10 | Berg +10 | |
| Mason-Dixon | 10/3 - 10/5/12 | 625 LV | 47 | 47 | 6 | - | |
| DFM Research (D-ND Dems/NPL) | 9/24 - 9/27/12 | 600 LV | 48 | 44 | 8 | Heitkamp +4 | |
| DFM Research (D-ND Dems/NPL) | 7/24 - 7/26/12 | 400 LV | 50 | 44 | 6 | Heitkamp +6 | |
| Rasmussen | 7/10 - 7/11/12 | 500 LV | 40 | 49 | 8 | Berg +9 | |
| Mason-Dixon | 6/4 - 6/6/12 | 625 LV | 47 | 46 | 7 | Heitkamp +1 | |
| DFM Research (D-DSCC) | 4/18 - 4/26/12 | 478 RV | 49 | 44 | 7 | Heitkamp +5 | |
| Mellman Group (D-DSCC) | 11/12 - 11/16/11 | 600 LV | 47 | 42 | 11 | Heitkamp +5 |
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