SACRAMENTO — “So you’re a reporter,” the salesman said as we sat in the little room. He was just trying to break the silence as we waited for his boss to come back and tell me that my offer for their overpriced car was too low. “What’s it like down there at the Capitol,” he asked. “Is it just all corruption?” That was several weeks ago. But I thought about the salesman when I read about Congressman Randy “Duke” Cunningham pleading guilty to taking at least $2.4 million in bribes. Probably no one is more representative of middle America than...