The only time I’ve ever volunteered for a presidential campaign was in 1995, when I spent a few nights making phone calls for Phil Gramm, who was running for the GOP nomination. It wasn’t the greatest of experiences: My very first call was to a person who was dead. I should have seen it as an omen. Today, Gramm likes to say that he’s “too ugly” to be president. The WSJ interviews the man who could be Treasury secretary in a McCain administration here.