Along the same lines - I found this article interesting.
http://www.psychologytoday.com/blog/brainstorm/200809/conservatives-are-dumber-and-smarter-liberals)
(
http://www.psychologytoday.com/blog/brainstorm/200809/conservatives-are-dumber-and-smarter-liberals)
Some salient points from the article:
It highlights (yet again) that ‘conservatism' is not necessarily a coherent construct, but that you have to distinguish at minimum social conservatism and economic conservatism (libertarianism). If you think about it: Jerry Falwell and Milton Freedman are worlds apart
States that had higher IQ's also voted more Democrats into office-but only if political involvement was high. In states with low voter turnout, high IQ was correlated with having more Republican lawmakers. What does it all mean? Theorize at will.
Neither of the studies answer whether cognitive ability influences political orientation, or vice versa, or whether a third factor influences them both. Kemmelmeier notes that the first option makes more sense than the second, given that intelligence is more dependent upon genes than is political orientation. But of course voting for an incompetent president or vice president can have the effect of making you FEEL so much smarter, if simply by comparison.