David Letterman David Letterman

Cheers to David Letterman for again proving he's a player in the presidential campaign.

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From George W. Bush's disastrous Top 10 list in 2000 to Dave's feud with John McCain after he blew off a 2008 interview, the Late Show host has repeatedly found himself in the thick of the race for the White House. And it looks like 2012 will be no exception.

After Texas Gov. Rick Perry suffered a potentially fatal brain freeze during Wednesday night's debate, he sought instant damage control by reading a self-deprecating Top 10 list of "Rick Perry Excuses" on Late Show. (My favorite lines: "You try concentrating when Mitt Romney is smiling at you. That is one handsome dude"; "I had a five-hour energy drink six hours before the debate"; and "I just learned Justin Bieber is my father.")

Letterman didn't let Perry off too easily, taking a few well-placed shots at him in the monologue ("It's 61 and foggy — kind of like Rick Perry"). Next Friday, Herman Cain will make the obligatory pilgrimage to the Ed Sullivan Theater for a sit-down with Dave. All hail Letterman: The king of late night is a kingmaker as well.

What did you think of Rick Perry on last night's Late Show?

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