If there’s anywhere that has captured the American mood in the past 20 years, it’s Erie, Pennsylvania. And Erie’s significance is bigger than its size. It’s a Rust Belt, Great Lakes, working-class swing community in the state’s far northwest. And Erie County has become a useful shorthand for the kind of voter coalition that decides Pennsylvania. It's best understood as two Eries: the city and the wider county. The city of Erie is smaller, poorer, denser and more diverse. Erie County is larger,