Linzer on Survey Bias

Very interesting at Votamatic.

Linzer's analysis and graphs show the left-leaning polling firms' results matching up with the smaller, state-level polling firms' results. That's good news for Obama, right? Seems to indicate that the polls more favorable to him are in line with the apparently neutral set of polls. OTOH, it's consistent with a scenario in which the right-leaning polls are right, and Obama's substantial lead is illusory.

From a detached perspective, it's exciting that the crucial experiment is coming up in four days...