When the vice-presidential candidates squared off against each other in the 1988 debate, Lloyd Bentsen delivered one of the sharpest political blows ever landed on an opponent. Republican Dan Quayle was proudly touting his years of experience and equating them with John F. Kennedy's 14 years in Congress before his 1960 presidential campaign. That's when Bentsen pounced on the unsuspecting Indiana senator in a memorable and flawlessly delivered take-down: . “I served with Jack Kennedy. I knew Jack Kennedy. Jack Kennedy was a friend of mine. Senator, you're no Jack Kennedy.” It was a defining moment and Bentsen's language has since been used as a formula for other political insults.