Associated Press
FILE - In this March 11, 2011 file photo, Wisconsin Gov. Scott Walker signs a bill at a ceremonial event in Madison, Wis. At right is Senate Majority Leader Scott Fitzgerald. 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/Morry Gash, File)

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