With the threat of ineligibility behind him, Rahm Emanuel has emerged as the front runner in Chicago's mayoral race, slated for February 22. In late January, an appellate court ruled Emanuel ineligible to run for mayor because he didn't satisfy the resident requirements. Last week the Illinois Supreme Court overturned that decision, and said Emanuel's name could appear on the ballot. While serving as President Obama's chief of staff, Emanuel lived for two years in Washington, but argued that he kept and paid taxes on his Chicago home. Now, with only a few weeks to go until Election Day, the Chicago race is heating up. The four candidates, Emanuel, former Chicago schools president Gery Chico, former U.S. Sen. Carol Moseley Braun, and Chicago City Clerk Miguel del Valle, went head to head in a televised debate last week. The candidates are vying to fill the post left vacant by Richard M. Daley who is retiring after having served for more than 20 years.