David Letterman was called back into action this weekend with a brand-new Top Ten List inspired by the recent presidential candidacy of Donald Trump. Although he’s been content since retiring as host of “Late Show” in May, Letterman called missing out on lampooning Trump’s White House bid “the biggest mistake of my life.” Appearing with his pals Martin Short and Steve Martin at their live comedy show Friday night in San Antonio, he made up for lost time with “Interesting facts about Donald Trump.” He cracked that Trump weighs 240 pounds — 250 with cologne.