Former Saturday Night Live writer and host John Mulaney made a joke Saturday on NBC, that compared President Donald Trump to Julius Caesar “a powerful maniac” who was assassinated by a group of senators. Mulaney said, “It is a Leap Year, as I said. Leap Year began in 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.