By Costas Panagopoulos and Kendall Bailey
President Trump is a self-proclaimed “very stable genius,” who says he’s “like, really smart,” and he has a history of boasting about his high IQ and challenging others to IQ tests. Of course, we don’t know his IQ, at least not yet. But even if he is as smart as he claims, would that make him a better president?
You might think the obvious answer is yes. After all, cognitive capacity is the single best predictor of job performance across a wide range of occupations. But the relationship between IQ and presidential greatness, while present, is not necessarily large.