Here's a much better treatment of the subject: http://www.american.com/archive/2009/october/are-liberals-smarter-than-conservatives http://www.american.com/arch

Here's a much better treatment of the subject: http://www.american.com/archive/2009/october/are-liberals-smarter-than-conservatives http://www.american.com/archive/2009/october/are-liberals-sm... Summary: For various reasons the general population skews conservative, essentially driving the correlation. "Smart people" probably don't much skew liberal.