The way that the pollster conduct polls is grossly flawed, and makes their motivations suspect.
CBS, unlike Gallup and Zogby, changed their methodology since the last poll. They now poll fewer independents and more Republicans.
Today they polled 31% Republicans, 34% Democrats and 35% Independents.
http://www.cbsnews.com/htdocs/pdf/AUG08B-THURS.pdfLast week they polled 28% Republicans, 35% Democrats and 36% Independents.
http://www.cbsnews.com/htdocs/pdf/Aug08bPostDemConv.pdfUnsurprisingly, Gallup detects no change.
"Welcome to Fun with figures" 101.
And they should stop pretending that McCain/Palin stand a chance - it sends the stock market into a panic.