Nate Silver over at Fivethirtyeight (now part of nytimes.com) has done his usual post-election investigation into how accurate the pollsters were at forecasting the election, and it turns out that Rasmussen Reports didn't do a very good job:
- Their polls were an average of 5.8 points off from the actual margin of victory.
- One poll (of the Hawaii Senate race) missed the mark by a full 40 percentage points, the largest error in a political poll since 1998.
- Their polls had a 3.9 point Republican bias, relative to the actual results.
So yeah, next time you see a Rasmussen poll, take it with a few extra grains of salt!