Associated Press
In this Nov. 15, 2011 file photo, Carla Koykkari, right, of Madison, signs a petition to force a recall election against Wisconsin Gov. Scott Walker as petition circulator Sue Breckenridge observes in Madison, Wis. More than a year after the standoff over union rights that rocked Wisconsin and the nation for weeks, the Republican Governor will face Milwaukee's Democratic Mayor Tom Barrett in Tuesday's recall election.(AP Photo/Scott Bauer)

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