Jay Cost on how to watch tonight's Republican debate:

Don't worry about who is winning the debate. Don't play the same meaningless game the press plays. Instead, watch to see how the five top candidates go after one another. Who attacks whom? What are the lines of attack? Do they wait until they are attacked by somebody else, until they are prompted by the moderators, or do they just go for it without provocation?

Those are wise words. You also may want to create a "GOP Debate Attack Chart" so you can keep visual track of who attacks whom, and how many times an attack occurs. If you do make such a chart, however, I wouldn't tell any of your friends about it, because they may look at you with puzzled, slightly disturbed expressions. Trust me on this.