Of all the jokes that could have landed John Mulaney in the Secret Service hot seat, his one about Leap Year and Julius Caesar was the one that actually did him in.
Appearing on Jimmy Kimmel Live ahead of the latest season of Big Mouth, Mulaney recounted the time that he was investigated by the president’s service that is secret after his February 2020 hosting turn on Saturday Night Live.
https://www.youtube.com/watch?v=-_SGiyscQXU:255
Here’s the joke from that episode’s opening monologue: “Leap Year began in the year 45 B.C. under Julius Caesar. This is true. He started the Leap Year in order to correct the calendar and we still do it to this day. Another thing that happened under Julius Caesar was he was such a powerful maniac that all the senators grabbed knives and they stabbed him to death. That’d be an interesting thing if we brought that back now. I asked my lawyer if I could make that joke and he said, ‘Lemme call another lawyer.’ And that lawyer said yes.”