To the politics of cocktail of politics. Known as the white house correspondents' dinner. Obama and d.C. Heavyweights rubbing elbows were reporters. The president took the mike and made a series of... See More
To the politics of cocktail of politics. Known as the white house correspondents' dinner. Obama and d.C. Heavyweights rubbing elbows were reporters. The president took the mike and made a series of jokes. How did he do. Reena ninan is in washington. Reporter: A series of jokes that poked fun at him, republicans and even conan o'brien. Overnight, stars came together for the yearly bash, a star-studded bashing of politics and the media. All in good fun. Democrats, republicans, the white house, congress. You all came together to make this spoof. That's what real bipartisan ship is about. Kevin spacey's house of cards was on hand. Mr. President, welcome to nerd prom. Reporter: For many, the roast of the president. Conducted this year by conan o'brien. Your hair is so white, it could be a member of your cabinet. But president obama knew exactly how to roll with it. When they considered conan for this gig, offer to it to him now or wait five years and give it to jimmy fallon. Call me self-centered. I think of one minority they can start with. Making light of stereotypes and rumors. I have to admit that I'm not the strangle muslim socialist that i used to be. Reporter: And owning up to gaves. Like when he called her the best looking attorney general in the country. As you might imagine I got in trouble when I got back home. Who knew eric holder was so sensitive. Reporter: Viewers got a sneak peek at steven spielberg's new epic. The comedy didn't disappoint last night. He wrapped up mentioning the tragedies in massachusetts and texas. Overall, a funny upbeat night with a lot of hollywood glamour. I like the method acting. Daniel day-lewis at with his best. Let's bring in george stephanopoulos who was at the dinner last night. George, some critics who say thing has become too focused on celebrities. What is your view on that? I guess. I have heard the criticism. It's a night of fun. It's been going on for almost 100 years. I think you see by the on the of the jokes, the attack jokes against each other, no one takes it all that seriously, a night to celebrate what we do. What you saw from the president and conan and ed henry, the head of the correspondents press association, a reminder of what we do every single night. Except this one night. I want to discuss an urgent matter, a startling report issued by the white house last week, that syria likely used chemical weapons on its own people. Is the administration now weighing military operations? Yes, but they want to verify the intelligence they have that the syrians have used chemical weapons, they want to make sure they were ordered by the syrian military, they want to be absolutely sure before any kind of military action is taken that the syrian government is responsible for this. That's likely to happen in the next several weeks. What that also means is, though, even if you move some joint military action, that does not mean that u.S. Boots on the ground. The u.S. Is pretty clear that's going to be avoided as well. Anything short of that is going to be effective against the assad regime? All right, george, thanks. Great to see you. George has a big show this morning. He'll be talking with the top members in the house and senate. That's coming up later this week this morning.
This transcript has been automatically generated and may not be 100% accurate.