Dems unfavorable toward likely voter polls

Politico:

Democrats are turning their fire on Scott Rasmussen, the prolific independent pollster whose surveys on elections, President Obama’s popularity and a host of other issues are surfacing in the media with increasing frequency.

The pointed attacks reflect a hardening conventional wisdom among prominent liberal bloggers and many Democrats that Rasmussen Reports polls are, at best, the result of a flawed polling model and, at worst, designed to undermine Democratic politicians and the party’s national agenda.

On progressive-oriented websites, anti-Rasmussen sentiment is an article of faith. “Rasmussen Caught With Their Thumb on the Scale,” blared the Daily Kos this summer. “Rasmussen Reports, You Decide,” the blog Swing State Project recently headlined in a play on the Fox News motto.

“I don’t think there are Republican polling firms that get as good a result as Rasmussen does,” said Eric Boehlert, a senior fellow with Media Matters, a progressive research center. “His data looks like it all comes out of the RNC [Republican National Committee].”

“Whether intended or not, Rasmussen polls have been used by conservative voices as talking points, and when that happens on one side it inevitably produces a reaction from the other,” explained Mark Blumenthal, a polling analyst and the editor and publisher of Pollster.com. “Rasmussen produces a lot of data that appear to produce narratives conservatives are promoting, and that causes a reaction.”

While Scott Rasmussen, the firm’s president, contends that he has no ax to grind — his bio notes that he has been “an independent pollster for more than a decade” and “has never been a campaign pollster or consultant for candidates seeking office” — his opponents on the left insist he is the hand that feeds conservative talkers a daily trove of negative numbers that provides grist for attacks on Obama and the Democratic Party.

...

The fact of the matter is that Democrats do not do as well in "likely voters" polling regardless of who the pollster is. Rasmussen does these types of polls year round while the other polling companies tend to get closer to the election before they do them. That is because they do not want to be that far off the actual results.

The Other polls also tend to under count Republicans and over count Democrat voters. Some samples will skew the number of blacks polled to help Democrats. The true test of the polls is an election and Rasmussen has been pretty close to the mark in recent results.