I used to watch all of the presidential debates when I was in my late twenties and early thirties. Even though my party allegiance was never in doubt, I wanted to know the contours of the debate even for the other side, what there substantive differences were, where the daylight between the candidates was, etc.I don't do this any more. Obviously one reason is that they are just not informative. None of the candidates truly embrace policy ideas, and even if they did, that isn't what is rewarded. So during their primaries, in particular, they draw largely semantic contrasts between other...