Or will he stop at two? Either way, the Texas governor is making a stop in New York City for a Letterman taping, reports Carrie Dann of NBC News. He'll be presenting the Late Show's "Top Ten," which the show's head writer/producer Justin Stangle just announced on Twitter. Letterman wasn't on the original schedule, reports National Journal's Sarah Mimms, who notes that Perry "nixed a TN fundraiser" in favor of the Letterman appearance. Mimms also confirms that there will be no interview which, in light of last night's brain-fumble, might be a sensible move.