More on sharksbatteriesgate from Tom Nichols in The Atlantic:

Trump is obviously unfit—and something is profoundly wrong with a political environment in which he can now say almost anything, no matter how weird, and his comments will get a couple of days of coverage and then a shrug, as if to say: Another day, another Trump rant about sharks.

Yes, but that’s been true all along. He’s worse now but he was terrible from the start.

In Las Vegas on Sunday, Trump went off-script—I have to assume that no competent speechwriter would have drafted this—and riffed on the important question of how to electrocute a shark while one attacks. He had been talking, he claims, to someone about electric boats: “I say, ‘What would happen if the boat sank from its weight and you’re in the boat, and you have this tremendously powerful battery, and the battery’s now underwater, and there’s a shark that’s approximately 10 yards over there?’”

As usual, Trump noted how much he impressed his interlocutor with his very smart hypothetical: “And he said, ‘Nobody ever asks this question,’ and it must be because of MIT, my relationship to MIT. Very smart.”

His relationship to MIT? He doesn’t have a “relationship” to or with or around or about MIT. He and the shark and the battery did not all attend MIT together. MIT never even sat next to Trump in the cafeteria.

Sure, it seems funny—Haha! Uncle Don is telling that crazy shark story again!—until we remember that this man wants to return to a position where he would hold America’s secrets, be responsible for the execution of our laws, and preside as the commander in chief of the most powerful military in the world. A moment that seems like oddball humor should, in fact, terrify any American voter, because this behavior in anyone else would be an instant disqualification for any political office, let alone the presidency. (Actually, a delusional, rambling felon known to have owned weapons would likely fail a security check for even a visit to the Oval Office.)

We know. We know we know we know. And it doesn’t seem all that funny, either. It’s sort of funny in a grotesque nightmarish way, but it’s far more disgusting and enraging than it is genuinely funny.