From using the word “guffawing” to talking about the perfect height of Michigan’s trees, Mitt Romney’s sons discuss their dad’s sense of humor. Tagg Romney says his dad is “a little goofy,” while Craig Romney admits sometimes his dad’s joke work and sometimes they don’t. NBC Correspondent Peter Alexander’s interview with Romney’s five sons airs Thursday, July 16 at 10pm/9c on NBC’s Rock Center with Brian Williams. (Rock Center)
