RTX22LO4 Why does Ted Cruz, left, make so many references to Cicero, right? And what does that mean for his hopes in the 2016 presidential election? REUTERS U.S.TED CRUZCICERO Ted Cruz's onstage appearance with Sean Hannity was going well. It was February 2015, and Cruz, like all the other GOP hopefuls, was at the Conservative Political Action Conference near Washington, D.C., being lobbed softballs by the Fox News talking head. Hannity was playing a little word game. "I'm going to ask you about three people, first words that come to your mind," Hannity said. "Barack Hussein Obama," Hannity prompted. Cruz...