Here's an article from the NRO campaign spot that bolsters this theory. The money quote is as follows:
"Believe me, there is someone in the Obama campaign who is deathly afraid of the 'McCain pulls even or goes ahead' poll." (And in Gallup, it was within 2 percent.) "That Obama strategist knows how much depends on the whole Chuck Schumer and Rahm Emanuel approach —.work with the media to demoralize conservatives, and keep the perception of a juggernaut going. But a day or two of a few bad polls, and that strategy backfires. The conservatives know they've still got a shot at this."Thus, the message for conservatives is to ignore the polls. If this theory is correct, no pollster will show McCain ahead for the duration of the election. In such a climate, the best thing to do is to assume McCain is 1% behind, and work like heck to get him elected. Volunteer. Call. Walk precincts. Vote!