For off-the-cuff gaffes, casual insults to the audience, and every category of cringe-worthy idiocy, any Donald Trump speech is hard to match. Consider his remarks in North Dakota, annotated and commentated here by a certain Stephen Colbert. He was supposed to talk about tax reform, but he went off script.

You’ve never really shuddered until you hear Trump boast about Ivanka calling him “Daddy.”