At a Virginia campaign appearance on Saturday, former President Bill Clinton was in the middle of a hilariously delusional stemwinder about how Barack Obama, the most bitterly divisive President in modern history, had worked to bring us all together. (This was after Obama told one of his own audiences to think of voting as an act of revenge against their enemies.) But then Clinton unleashed a storm of controversy by saying this about the American military: “One of the things the Decider-in-Chief has to do is decide whether he’s going to bring this country together across all its diversity or...