evidence: In Washington, even the dogs are pundits. [...] An apocryphal Harry Truman quote has it that "if you want a friend in Washington, get a dog." He probably should have specified a breed, such as a collie or a German shepherd. Z.Z., by contrast, was described to me by one of her trainers as a prostitute (the trainer used a different word): She places her loyalty with whoever is making her the best offer. In a town of lobbyists, this is all too familiar.