I don’t think there’s a question that Democrats face a structural gap and an intensity gap for the midterms. Structural in the sense that core Democratic voting groups don’t turn out for midterms as frequently as other core Republican voting groups; intensity in the sense that Republicans are simply more excited about voting in 2010. However, these gaps, however expansive, may not result in as big a slaughter as advertised (especially by the GOP). That’s because the conservative noise machine has crept into that seemingly incorruptible social science: polling.

There’s a good reason that polls show a major Republican swing for November – 28% of them come from Rasmussen, a Republican pollster who has “flooded the zone” this election cycle. This doesn’t mean they’re wrong – they obviously feel that the electorate will look a certain way. But it does mean that a large percentage of the polling out there reflects this lean, and it works its way into the overall narrative about the election. At that point, you have to question whether the polling reflects the electorate, or if the electorate starts to reflect the polling, with conservatives energized by news of a good showing, and vice-versa.

Rasmussen apparently got a wave of funding recently, allowing them to do their work:

Yes, Rasmussen Reports has fielded far more polls so far this cycle, both in absolute terms (45 vs. 13) and as a percentage of the total (28% vs 18%). One likely explanation is the “major growth capital investment” from a private equity firm they announced this past August:

“This investment will enable Rasmussen Reports to expand and enhance all aspects of our business,” said Scott Rasmussen, founder and president of Rasmussen Reports. “That includes expanding our Premium Membership service and subscription base, developing new index products and sponsorship opportunities, and exploring new research techniques.”

I’d certainly like to follow the money on that one.

Other pollsters are starting to see a subtle but pronounced bounce back to Democrats, and they may even keep more Senate seats than expected. I’d still expect some healthy losses. But I do think the Rasmussen question should be answered. Obviously, there’s no restriction on polling frequency. But by “flooding the zone” and dominating the electoral narrative, Rasmussen is driving the election and maybe even molding opinions about it.