Funny Moments from the 2008 Campaign Trail

Tina Fey impersonates Sarah Palin in a series of SNL skits, including a joint appearance alongside "Hillary Clinton," a parody of Palin's interview with Katie Couric, and a spoof of the vice presidential debate.

A Canadian comedy duo prank calls Sarah Palin and convinces her she's talking to French President Nicolas Sarkozy. Hilarity ensues.

David Letterman delivers one of the most punishing beat downs any candidate has ever received on late-night TV. "This doesn't smell right," Letterman said of McCain's decision to suspend his campaign and cancel his appearance on the show. "This is not the way a tested hero behaves. Somebody's putting something in his Metamucil."

The real John McCain appears on "Saturday Night Live" with Tina Fey as Sarah Palin, taking part in a skit in which the two act as QVC hosts.

Barack Obama and John McCain crack jokes at each other's expense at the Al Smith Dinner. Read highlights, plus check out the videos and transcripts of their dueling comedy routines.

Sarah Palin makes a much-ballyhooed appearance on "Saturday Night Live," where she plays along as Tina Fey once again skewers her. Palin also participates in a skit featuring Amy Poehler singing a catchy Sarah Palin rap song.

In one of the most amusing images of the 2008 campaign, John McCain gets caught on camera sticking out his tongue as he walks off stage the wrong way. Photoshoppers go wild mocking "zombie McCain."

Seeking to bring "truthiness" to the 2008 campaign, Stephen Colbert announces he will run for president in South Carolina, saying, "I am from South Carolina, I am for South Carolina, and I defy any other candidate to pander more to the people of South Carolina."

Barack Obama gets jiggy during an appearance on the Ellen Degeneres Show.

Conan O'Brien, Stephen Colbert, and Jon Stewart resort to fisticuffs to settle a hilarious mock feud over who made Mike Huckabee.