Chart shows relationship between 2004 electoral vote result and voter IQ.
Topic: presidential election
I know that Daveycorn is all about researching hoaxes without going to Snopes.com, but I simply can't be bothered.

When I got this chart titled US Election 2004: Results listed by IQ from about a dozen different people I smelled an "urban legend."

Fool Me Twice

Claim: Chart shows relationship between 2004 electoral vote result and voter IQ.

Status: False.

Origins: Some pranks are so good they keep working over and over again.

Back in November 2002, someone (using the name Robert Calvert) created and posted to a USENET newsgroup a phony chart which purportedly showed the average IQ per state in the U.S., along with the average income and a column indicating how that state voted in the 2000 presidential election. The gag was that all the states that voted for Vice-President Al Gore in the 2000 presidential election were clustered at the top of the IQ scale, while all the states that voted for then-Texas Governor George W. Bush were clustered at the bottom.

Snopes.com read the rest here.