Foxfyre wrote:It's hard to see Rasmussen as inserting partisanship into his polls, too, when often he has been one who has Kerry ahead when most of the others still give Bush the edge.
Nonsense.
Rasmussen polls only two-way races. In his week-by-week polling updates, he's had Bush ahead 20 out of 30 times since February, Kerry only 10 times. In the same period, the average of all two-way race polls I could find has had Kerry ahead for 16 of those 30 weeks, and Bush just 14.
Eg: 13 out of 18 times, Rasmussen polled more favourably for Bush than CBS/NYT. 11 out of 15 times, he polled more favourably for Bush than Newsweek. 7 out of 11 times, he polled more favourably to Bush than Time. 9 out of 16 times, he polled more favourably to Bush than IBD/CSM/TIPP. Only with Gallup he's at a par, and Fox has polled more favourably to Bush more often still than Rasmussen.
Not that that by itself proves Rasmussen is slanted towards the R's, though, it must be added. Because for its inclination to have had Bush up more often than the other polls another explanation is possible too. Namely that Rasmussen has just polled extremely cautiously this year. When Kerry was on average ahead 2-3%, Rasmussen would still have the race roughly a tie. But when Bush got to be ahead on average by 5+%, Rasmussen also had his lead merely at 2-3%.
Here's a graph to illustrate how the Rasmussen poll compares with the other two way race polls: