I thought it was a variation on this.
[link|http://www.snopes.com/politics/satire/gop.asp|Study finds that persons of lower intelligence are more likely to support President George W. Bush.]
FWIW.
Cheers,
Scott.
(Who remembers that Bush does best in Utah polls, but [link|http://www.sltrib.com/utah/ci_4256184|Utah's SAT scores aren't horrible].)