Who invited Stephen Colbert to the White House Correspondents Dinner? Don't they have some kind of snipers that kill anyone remotely funny within a ten mile radius of the Whitehouse?
They even let him make a speech. Which is quite possibly the most punk rock thing I've read . I've heard about a few things some whiners have said about how the jokes were recycled and how there were only a handful of truly laugh-until-you-pee moments. To them I say: Sweet Jesus Christ on ice skates, who cares! There's not really a large pool of people cracking jokes about the president to his face at the White House to pick from, y'know?
You can read the transcript of the whole thing
here, or, for the more fidgety, here's a sampling of the truthiness:

"Wow. Wow, what an honor. The White House correspondents' dinner. To actually sit here, at the same table with my hero, George W. Bush, to be this close to the man. I feel like I'm dreaming. Somebody pinch me. You know what? I'm a pretty sound sleeper -- that may not be enough. Somebody shoot me in the face. Is he really not here tonight? Dammit. The one guy who could have helped.
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Every night on my show, the Colbert Report, I speak straight from the gut, OK? I give people the truth, unfiltered by rational argument. I call it the "No Fact Zone." Fox News, I hold a copyright on that term.
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Ladies and gentlemen, I believe it's yogurt. But I refuse to believe it's not butter. Most of all, I believe in this president.
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So don't pay attention to the approval ratings that say 68% of Americans disapprove of the job this man is doing. I ask you this, does that not also logically mean that 68% approve of the job he's not doing? Think about it. I haven't.
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But the rest of you, what are you thinking, reporting on NSA wiretapping or secret prisons in eastern Europe? Those things are secret for a very important reason: they're super-depressing. And if that's your goal, well, misery accomplished. Over the last five years you people were so good -- over tax cuts, WMD intelligence, the effect of global warming. We Americans didn't want to know, and you had the courtesy not to try to find out. Those were good times, as far as we knew.
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John McCain is here. John McCain, John McCain, what a maverick! Somebody find out what fork he used on his salad, because I guarantee you it wasn't a salad fork. This guy could have used a spoon! There's no predicting him.
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Jesse Jackson is here, the Reverend. Haven't heard from the Reverend in a little while. I had him on the show. Very interesting and challenging interview. You can ask him anything, but he's going to say what he wants, at the pace that he wants. It's like boxing a glacier. Enjoy that metaphor, by the way, because your grandchildren will have no idea what a glacier is."