The US electoral process is prejudiced against any candidate with skills other than "people skills." Anybody who campaigns on a platform even implying the advantage of intelligence will be cast as an elitist. Boom, campaign-headshot.
Sure, there are exceptions, and that guy is pretty low-level. My point is on the level of Mitt Romney's Mormonism: certain traits do not appear to be compatible with higher office (these days). Look at John Kerry's 2004 campaign for some examples of what I'm talking about.
