Democrats tend to have more of an education than Republicans. Why is this? Are Democrats actually smarter?

http://www.eduinreview.com/blog/2008/09/are-democrats-more-educated-than-republicans/

http://www.cnn.com/ELECTION/2006/pages/results/states/US/H/00/epolls.0.html

I'd post some more, but I have to bottle some homebrew.

Discuss.