WTOP Entertainment Editor Jason Fraley chats with Cappy McGarr, creator of the Kennedy Center’s Mark Twain Prize for American Humor. He releases a new book today called “The Man Who Made Mark Twain Famous,” featuring behind-the-scenes stories about the award’s funniest recipients from Will Ferrell shattering the ceramic bust to Bill Murray putting in the Oval Office to Eddie Murphy turning heads in the Situation Room. He also explains why Mel Brooks remains his white whale.