Weasel Silver is a delusional liar and a hack. He's been caught in so many lies that nothing he says is credible. He is purposefully manipulating data in order to try to discredit Rasmussen. The fact is, Rasmussen correctly picked the results in several States while others like PPP got the winner wrong.
Rasmussen also incorrectly picked the results in several states, factually. Rasmussen also factually did not show poll results closer to the actual results than most other mainstream pollsters, on average.
What evidence are you looking at?
Does anyone think that single-day sample robocalls with zero callbacks, inter-household randomization or cell phone numbers is going to fly as acceptable polling techniques among junkies in 10 years?