Sandra M. Jones

Wal-Mart is right up there with "Big Oil" as a left-wing bogeyman, and the mainstream media are often on the side of liberal activists screaming "Boo!" as our friends at the Business & Media Institute can attest. But today's Chicago Tribune laid out how "[b]ig city politics trumps low prices" with a labor union victory over Wal-Mart's plans to erect a store within city limits.The paper's Web…