Better-educated Republicans are more likely to doubt global warming and believe Obama's a Muslim.
This was my first encounter with what I now like to call the “smart idiots” effect: The fact that politically sophisticated or knowledgeable people are often more biased, and less persuadable, than the ignorant.
But it’s not just global warming where the “smart idiot” effect occurs. It also emerges on nonscientific but factually contested issues, like the claim that President Obama is a Muslim. Belief in this falsehood actually increased more among better-educated Republicans from 2009 to 2010 than it did among less-educated Republicans, according to research by George Washington University political scientist John Sides.