Once again great stuff tonight from Kerry and Bush. I really love the boxing analogy of Ali and Fraser, and for those of you who may not be fans of the sweet science of boxing, let me explain.

In the 1970's Ali and Joe Fraser went at it in a series of classic fights that showed a great contrast in fighting styles. Ali was his typical "float like a butterfly, sting like a bee" self moving and hitting. He never worked one part of his opponent, but instead showered him with hits from all over.

Fraser in contrast beat his opponent in a brawling style focusing on his body. Body shots are, in the long term, tough to overcome, but not as showy or dramatic to the casual fan as the Ali style.

Here goes. Ali is Kerry, bobbing and weaving. He hits, and ducks, he moves on. I'm not sure it works, but it sure looks better to the casual fan. Bush is Fraser. Same themes, working the body and beating his opponent on credibility and challenging him.

It's compelling stuff, and frankly much more entertaining than I would have guessed.