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Fred's jab at Rudy

From NBC's Joel Seidman

Former GOP Tennessee Sen. Fred Thompson, speaking at a GOP gathering in South Carolina today, hit his usual core issues, tax cuts, and terrorism -- but also took an apparent shot at GOP front-runner Rudy Giuliani's checklist of things he says a president needs to do to be successful.Thompson, in what seemed to be a direct criticism of Giuliani, said, "The question is what are your underlying principles what do you believe in?" The still unannounced candidate went on to say, "Anybody can talk from a mental checklist of talking points. What do you really believe in? Where are you coming from?"

Giuliani in speeches has outlined six things he says a leader needs to be successful, and said he has identified 12 "commitments" to voters if elected president.