David Lettermen Comes Out Of Retirement To Slam Donald Trump With Special Top Ten List

David Letterman might be retired from his CBS late night talk show, but he's still in the mood to entertain. But on Friday, he made an appearance as a surprise guest on Martin Short and Steve Martin's A Very Stupid Conversation comedy show in San Antonio, Texas. He described retiring before Donald Trump announced he was running for President as the "biggest mistake of my life." He then read a Top Ten list, "Interesting Facts About Donald Trump."