“9. How can we tell if a politician is telling the truth? Is there a way to know for sure? You may remember the old joke: “How do you know if a politician is lying? If he’s moving his lips.” It’s not that funny anymore, is it? Obviously, there is no certain way to know at the moment something is said. But remember this: past performance serves to reveal future behavior. A person who has exhibited a pattern of lying is a liar.”
