Hillary Clinton invokes the assassination of Robert Kennedy as justification to remain in the presidential race. "My husband did not wrap up the nomination in 1992 until he won the California primary somewhere in the middle of June, right? We all remember Bobby Kennedy was assassinated in June in California. I don't understand it." Mike Huckabee could have declared: "I'm staying in the race just in case John Mccain has a stroke." He could even have referenced Ted Kennedy's recent health ...