If you are looking for a reason to vote for Ralph Nader, the way both parties are handling the “gay marriage” issue should give you lots of data. John Kerry, when asked his opinion of “gay marriage,” looks like a dog getting a bath, as Chris Hitchens puts it. Kerry says he personally opposes “gay marriage”—but he favors civil unions, which are exactly the same thing. The states, he says, should decide the issue, but he voted against the Defense of Marriage Act in 1996, which was specifically designed to allow each state to reject marriage licenses issued in other...