(CNN) -- Chris Rock is best known for two things: being funny and being crass.





"If you're the president you only have two jobs: peace and money," Chris Rock said.





"This is what people come to see. I'm just doing my show," the comedian said with a laugh.





He's also known for his political commentary, but there's one person he's having a lot of trouble making fun of -- president-elect Barack Obama.





This is apparent in his new DVD "Kill the Messenger," which combines three shows from his international tour: New York; London, England; and Johannesburg, South Africa.





"It was a tour nobody wanted to do... because the general perception is that comedy doesn't translate," Rock said.





But thanks to the Internet, the world is a lot smaller than it was even 10 years ago. And people are digging the same jokes, he said, including ones about John McCain and Sarah Palin.





As the DVD readies for release on January 20, CNN talked with Rock about his lack of Obama jokes, Inauguration Day and why racism will never die. The following is an edited version of that interview:





CNN: I watched the special last night, and I noticed that you did a lot of jokes about John McCain -- his age, his war hero story -- but not so many about Barack Obama. Is it harder to make fun of Obama?





Chris Rock: He's just one of those guys, you know, like Will Smith. There's no Will Smith jokes. There's no Brad Pitt jokes. You know, what are you going to say? "Ooh, you used to have sex with Jennifer Anniston. Now you have sex with Angelina Jolie. You're such a loser." What do you say? "Ooh, your movies are big. You make $20 million." There's nothing to say about Brad Pitt.





CNN: Why is Obama like that?





Rock: It's like "Ooh, you're young and virile and you've got a beautiful wife and kids. You're the first African-American president." You know, what do you say?





CNN: As time goes on do you think it will get easier?





Rock: Of course, as time goes on. At some point he's going to -- there's always slip-ups. No one can survive that level of scrutiny without occasionally making it easy for a comedian.





CNN: Let's talk about the inauguration. Are you going?





Rock: No, I have to go to Sundance [Film Festival]. I've got a movie premiering at Sundance. So I have to go to the whitest place in America -- Utah.





CNN: What's it going to be like for you on Inauguration Day?





Rock: It'll be a cool day. It's weird. I've never watched an inauguration. I've never watched anyone get sworn in. You know, it's like Election Day and then you look up and somebody else is the president two months later. It was never like, "I can't wait till tomorrow. Oh my god! They're going to swear in Jimmy Carter!"





CNN: Are you going to watch this one, though?





Rock: I'll put it this way -- like any business is going to be getting done while this guy is getting sworn in. Like I'm going to be in a meeting. Everything is going to stop for however long it takes. Hope they get to it -- hope it's not like I gotta listen to three different versions of "The Star-Spangled Banner" or something. I hope it's not like Rosa Parks' funeral, where everybody f***ing speaks.





CNN: What are you hoping Barack Obama does for this country? What do you think is his most important task?





Rock: You know, if you're the president you only have two jobs: peace and money. That's
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