The 44 Dumbest U.S. Presidents Ranked By IQ

2. George W. Bush: 138.5

Dumber than a whopping 42 presidents is George W. Bush. Despite winning two terms as Chief Executive, George W. became the butt of many jokes about his low intelligence. Relative to other U.S. presidents, 138.5 is certainly not something to be proud of. But the all-time “dumbest” person to ever occupy the Oval Office was…