The neocons play on the ignorance and fear of people. They aim at the lowest common denominator.
Little Hawk has it right, as usual. Looking at those graphs just says it all, doesn't it! It's made my day actually!
Now I'd love to see some similar figures on IQ's in electorates that voted little Johnnie Howard in, here in Oz. I suspect that would tell a similar story. I reckon little Johnnie knew Dubya was going to win (he likes sucking up to whoever is in power). Don't ask me how he knew. I get more and more cynical about politics all the time.