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.)

So let me engage a (imaginary) Trump voter:

Me: How can you possibly support a demagogue with less experience than any president in history?

Voter: You media know-it-alls are so patronizing! Trump has experience where it matters, making things happen in the business world. Anyway, what have experienced politicians brought us? A corrupt and broken system. Let’s try something new — and at least he’s a straight shooter.

Me: He has a reputation as a straight shooter, but he lies. When PolitiFact was choosing its “lie of the year,” it found that all its real contenders were Trump statements — so it collectively awarded his many campaign misstatements the “lie of the year” award. And in backing him, you’re pretty much guaranteeing a Hillary Clinton presidency. Indeed, because of Trump, the betting markets are now predicting a Democratic Senate as well.

Voter: Come on! Trump proved all of you pundits wrong again and again, and he’ll do so again. And even those betting markets you like to cite — they show Trump with at least a one-in-four chance of being our next president, and that’s while other Republicans are trying to rip him apart. Just wait until the party rallies around Trump.

Me: But how can you support a candidate who is so hateful? This is a man who calls Mexican immigrants rapists, who is slow to denounce the Ku Klux Klan, and who is mulling a registry for Muslims. You’re O.K. with a racist in the White House?