According to Dana Milbank of The Washington Post, most Republican candidates spoke at a high-school or middle-school level in the last G.O.P. debate, based on the Flesch-Kincaid Grade Level Index. Meanwhile, Trump spoke at a third- or fourth-grade level. After the Nevada caucuses, Ted Cruz spoke at a ninth-grade level, Clinton at a seventh-grade level — and Trump at about a second-grade level! (I checked Trump’s victory speech on Super Tuesday evening, a more moderate speech that seemed to reach for the center, and Trump had raised his rhetoric to a sixth-grade level.)