Mayoral candidate Rahm Emanuel leaves Chicago's Home of Chicken and Waffles restaurant following a campaign stop and lunch Monday. He is the front-runner among the six candidates. Scott Olson/Getty Images hide caption

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Mayoral candidates (from left) Rahm Emanuel, Miguel del Valle and Gery Chico wait for the start of Monday's debate at the WTTW television studios in Chicago. The fourth candidate, Carol Moseley Braun, arrived later. Charles Cherney/AP hide caption

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Realtor Teresa Sciubba (left) talks to real estate investor Kristin Gragg outside a foreclosed property in Chandler, Ariz. Matt York/AP hide caption

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State Sen. Bill Brady, Republican candidate for governor in Illinois. M. Spencer Green/AP hide caption

itoggle caption M. Spencer Green/AP