When asked by Oprah Winfrey why he apologized for his lewd sex joke targeting Sarah Palin’s 14-year-old daughter, David Letterman explained candidly that “I felt like Sarah Palin was somebody I wanted to continue to be able to make fun of and I felt like if I don’t apologize, if I don’t sincerely express my regret, I will not be able to go forward making fun of her.”

Is retiring late night host David Letterman a liberal? That anecdote might provide some sort of clue, but according to The Fix, it’s surprisingly hard to say.

For just about everyone else, though, it’s surprisingly easy to say.

Let’s just go with: