A somewhat legal law is a little like a somewhat pregnant woman. At first blush, it seems like an absurdity. But President Bush disagrees. In the past five years, quietly but systematically, he has been arguing that the law doesn't always apply to him. How has he done this? By attaching "signing statements" that spell out his own attitude to bills he signs.
Previous Presidents have sporadically issued signing statements, but seldom and mainly as boilerplate or spin. Until the 1980s, there had been just over a dozen in two centuries. The President's basic legislative weapon, after all, is the veto power given...