These numbers are more consistent with the weekly Gallup internals (which last had McCain leading by nine points among Independents, with new weekly numbers due tomorrow or Wednesday).
I wonder how much of this had to do with the McCain camp's new emphasis on people like Ayers. Normally, Independents and swing voters hate this type of stuff (ditto for the Boy Genius's "Keating 5" response), but perhaps they focus grouped this issue and made some interesting discoveries.
the best poll for McCain in the last week or so.
His lead among white voters is at 14, in my turnout model it makes Obama lead by about 5%.
The last NBC/WSJ poll was also ok-ish, with Obama leading by 6 with leaners. If McCain can stabilize his deficit at 6 by mid-October, there may be some chance for a final push.
Of course, if the market meltdown continues (S&P down 8% today before recovering to -4%), the slide in the polls will continue as well.