To resolve this debate, let’s ask a version of my favorite question: What does Donald Trump know? Let’s start with his language skills. According to the Flesch-Kincaid grade-level test, commissioned by the U.S. Navy in 1975 to determine the readability of training manuals, Trump speaks at a fourth-grade level—lower than the fifteen most recent presidents. Contradicting Trump’s famous self-assessment on the 2016 campaign trail—“I know words. I have the best words”—he doesn’t use many different ones.
