Rick Perry does 'Top 10' list tonight

Rick Perry, the gaff-prone GOP candidate who had a considerable senior moment during last night's debate when he forgot the name of the agency he planned to shutter, will appear Thursday night on  "Late Show with David Letterman" to handle "Top Ten" chores. This, of course, is called trying to make a silk purse out of a sow's ear. He was on "Today" earlier to laugh the whole thing off.