| Canadian Political Parties (%) | ||||||
| Con | Lib | NDP | Bloc | Grn | Oth | |
| 2008-10-09 Ekos … | 36% | 24% | 19% | 11% | 10% | — |
| 2008-10-08 Nanos Research … | 33% | 29% | 20% | 7% | 10% | — |
| 2008-10-08 Harris-Decima … | 32% | 27% | 19% | 12% | 8% | — |
| 2008-10-08 Ekos … | 35% | 24% | 20% | 11% | 10% | — |
| 2008-10-07 Nanos Research … | 33% | 29% | 20% | 7% | 11% | — |
| 2008-10-07 Harris-Decima … | 31% | 27% | 20% | 12% | 8% | — |
| 2008-10-07 Ekos … | 34% | 25% | 20% | 11% | 10% | — |
| 2008-10-06 Harris-Decima … | 31% | 26% | 21% | 13% | 8% | — |
| 2008-10-06 Nanos Research … | 34% | 31% | 18% | 6% | 11% | — |
| 2008-10-06 Ekos … | 33% | 26% | 19% | 12% | 10% | — |
| 2008-10-05 Nanos Research … | 34% | 29% | 20% | 6% | 11% | — |
| 2008-10-05 Harris-Decima … | 32% | 25% | 21% | 12% | 8% | — |
| 2008-10-05 Ekos … | 35% | 25% | 19% | 10% | 10% | — |
| 2008-10-04 Harris-Decima … | 34% | 24% | 20% | 13% | 8% | — |
| 2008-10-04 Nanos Research … | 34% | 30% | 19% | 7% | 10% | — |
| 2008-10-03 Angus-Reid … | 40% | 25% | 19% | 6% | 11% | 0% |
| 2008-10-03 Harris-Decima … | 35% | 22% | 20% | 13% | 9% | — |
| 2008-10-03 Nanos Research … | 35% | 28% | 19% | 8% | 10% | — |
| 2008-10-02 Ipsos-Reid … | 37% | 23% | 19% | 10% | 10% | 1% |
| 2008-10-02 Harris-Decima … | 37% | 22% | 18% | 12% | 9% | — |
| 2008-10-02 Nanos Research … | 35% | 30% | 18% | 9% | 10% | — |
| 2008-10-02 Ekos … | 36% | 24% | 19% | 11% | 10% | — |
| 2008-10-01 Harris-Decima … | 36% | 23% | 18% | 12% | 9% | — |
| 2008-10-01 Ekos … | 34% | 25% | 19% | 11% | 10% | — |
| 2008-09-30 Nanos Research … | 36% | 26% | 20% | 9% | 10% | — |
| 2008-09-30 Ekos … | 34% | 25% | 20% | 11% | 10% | — |
| 2008-09-29 Harris-Decima … | 36% | 26% | 18% | 11% | 9% | — |
| 2008-09-29 Nanos Research … | 37% | 26% | 20% | 8% | 10% | — |
| 2008-09-29 Ekos … | 34% | 27% | 19% | 10% | 9% | — |
| 2008-09-29 Harris-Decima … | 36% | 26% | 18% | 11% | 9% | — |
| 2008-09-29 Nanos Research … | 37% | 26% | 20% | 8% | 10% | — |
| 2008-09-29 Ekos … | 34% | 27% | 19% | 10% | 9% | — |
| 2008-09-28 Harris-Decima … | 36% | 26% | 19% | 9% | 8% | — |
| 2008-09-28 Nanos Research … | 36% | 26% | 20% | 9% | 9% | — |
| 2008-09-28 Ekos … | 34% | 26% | 20% | 10% | 10% | — |
| 2008-09-27 Harris-Decima … | 36% | 25% | 19% | 9% | 9% | — |
| 2008-09-27 Nanos Research … | 36% | 27% | 19% | 9% | 9% | — |
| 2008-09-26 Harris-Decima … | 38% | 23% | 19% | 9% | 9% | — |
| 2008-09-26 Nanos Research … | 39% | 25% | 19% | 8% | 9% | — |
| 2008-09-25 Angus-Reid … | 40% | 21% | 21% | 10% | 7% | 2% |
| 2008-09-25 Ipsos-Reid … | 39% | 23% | 18% | 8% | 11% | 1% |
| 2008-09-25 Harris-Decima … | 37% | 24% | 19% | 9% | 10% | — |
| 2008-09-25 Nanos Research … | 39% | 24% | 19% | 9% | 8% | — |
| 2008-09-25 Ekos … | 35% | 25% | 20% | 10% | 10% | — |
| 2008-09-24 Harris-Decima … | 36% | 23% | 17% | 9% | 12% | — |
| 2008-09-24 Nanos Research … | 40% | 25% | 19% | 9% | 8% | — |
| 2008-09-24 Ekos … | 36% | 25% | 19% | 10% | 11% | — |
| 2008-09-23 Harris-Decima … | 37% | 24% | 16% | 9% | 12% | — |
| 2008-09-23 Nanos Research … | 37% | 26% | 21% | 9% | 7% | — |
| 2008-09-23 Ekos … | 37% | 24% | 19% | 9% | 11% | — |
| 2008-09-22 Harris-Decima … | 37% | 24% | 17% | 8% | 11% | — |
| 2008-09-22 Nanos Research … | 38% | 27% | 21% | 8% | 6% | — |
| 2008-09-22 Ekos … | 36% | 25% | 19% | 8% | 12% | — |
| 2008-09-21 Ekos … | 38% | 23% | 17% | 7% | 12% | — |
| 2008-09-21 Nanos Research … | 35% | 30% | 22% | 7% | 6% | — |
| 2008-09-21 Ipsos-Reid … | 37% | 24% | 19% | 8% | 12% | — |
| 2008-09-20 Harris-Decima … | 39% | 23% | 17% | 8% | 11% | — |
| 2008-09-20 Nanos Research … | 36% | 31% | 20% | 7% | 7% | — |
| 2008-09-19 Harris-Decima … | 38% | 23% | 17% | 8% | 12% | — |
| 2008-09-18 Harris-Decima … | 38% | 25% | 15% | 12% | 8% | — |
| 2008-09-18 Nanos Research … | 39% | 28% | 18% | 7% | 7% | — |
| 2008-09-18 Ekos … | 36% | 25% | 18% | 13% | 8% | — |
| 2008-09-17 Harris-Decima … | 36% | 27% | 16% | 11% | 8% | — |
| 2008-09-17 Nanos Research … | 39% | 30% | 18% | 6% | 7% | — |
| 2008-09-17 Ekos … | 38% | 24% | 18% | 12% | 8% | — |
| 2008-09-16 Harris-Decima … | 38% | 28% | 15% | 10% | 8% | — |
| 2008-09-16 Nanos Research … | 38% | 31% | 17% | 7% | 7% | — |
| 2008-09-16 Ekos … | 38% | 24% | 19% | 11% | 8% | — |
| 2008-09-15 Segma/UniMarketing … | 42% | 23% | 16% | 10% | 7% | 2% |
| 2008-09-15 Harris-Decima … | 38% | 27% | 16% | 10% | 8% | — |
| 2008-09-15 Nanos Research … | 38% | 31% | 17% | 8% | 6% | — |
| 2008-09-15 Ekos … | 38% | 23% | 19% | 11% | 9% | — |
| 2008-09-14 Harris-Decima … | 38% | 27% | 16% | 9% | 8% | — |
| 2008-09-14 Nanos Research … | 37% | 31% | 18% | 9% | 6% | — |
| 2008-09-14 Ekos … | 35% | 25% | 19% | 11% | 9% | — |
| 2008-09-13 Harris-Decima … | 40% | 26% | 15% | 9% | 8% | — |
| 2008-09-13 Nanos Research … | 38% | 30% | 17% | 9% | 6% | — |
| 2008-09-12 Harris-Decima … | 41% | 24% | 16% | 10% | 8% | — |
| 2008-09-12 Angus-Reid … | 39% | 23% | 18% | 10% | 9% | 1% |
| 2008-09-12 Nanos Research … | 38% | 30% | 15% | 8% | 9% | — |
| 2008-09-11 Harris-Decima … | 41% | 26% | 14% | 9% | 8% | — |
| 2008-09-11 Ipsos-Reid … | 38% | 29% | 13% | 11% | 8% | 1% |
| 2008-09-11 Nanos Research … | 38% | 31% | 14% | 9% | 9% | — |
| 2008-09-11 Ekos … | 36% | 26% | 19% | 11% | 8% | — |
| 2008-09-10 Nanos Research … | 37% | 32% | 13% | 9% | 9% | — |
| 2008-09-10 Ekos … | 37% | 26% | 19% | 10% | 9% | — |
| 2008-09-09 Ekos … | 37% | 26% | 19% | 10% | 8% | — |
| 2008-09-09 Angus-Reid … | 38% | 24% | 21% | 7% | 9% | 1% |
| 2008-09-08 Harris-Decima … | 36% | 28% | 15% | 9% | 9% | — |
| 2008-09-06 Segma/UniMarketing … | 43% | 25% | 15% | 7% | 8% | 2% |
| 2008-09-04 Ekos … | 38% | 27% | 18% | 10% | 7% | — |
| 2008-08-31 Strategic Counsel … | 37% | 29% | 17% | 9% | 8% | — |
| 2008-08-28 Angus-Reid … | 36% | 28% | 18% | 8% | 9% | 1% |
| 2008-08-28 Ipsos-Reid … | 33% | 31% | 16% | 10% | — | — |
| 2008-08-27 Nanos Research … | 33% | 35% | 17% | 7% | 8% | — |
| 2008-08-24 Harris-Decima … | 33% | 34% | 15% | 9% | 7% | — |
| 2008-08-14 Ipsos-Reid … | 36% | 30% | 14% | 10% | 9% | 0% |
| 2008-08-10 Harris-Decima … | 32% | 33% | 15% | 13% | 6% | — |
| 2008-07-31 Ipsos-Reid … | 34% | 30% | 14% | 11% | 9% | 2% |
| 2008-07-30 Angus-Reid … | 35% | 30% | 17% | 8% | 9% | — |
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