In September, weeks before the election, a seven-day walkout by teachers in President Obama's Chicago hometown kept 350,000 students out of class. It was the first teachers strike in 25 years in the city, which has the nation¿s third-largest district. The fight over wages, job security and evaluations became a war of words between Karen Lewis, president of the Chicago Teachers Union, and Mayor Rahm Emanuel, who appoints the school board.
Charles Rex Arbogast / AP Photo
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