The United States have been ranked by what they're #1 in and by who's the fattest, but they've now been ranked by intelligence. Specifically, by their IQ, SAT and ACT scores, and percentage of college graduates. Why? Most people would not presume to rank the American states in such a blunt and perhaps crass manner, but after Donald Trump wondered aloud "How stupid are the people of Iowa?" for supporting Dr. Ben Carson over himself, the Washington Post took it upon themselves to avenge Iowa and rank the rest of the Union in the process.

Sources: Washington Post