FILE - In this March 10, 2012, file photo, labor groups and others rally in front of the state capitol building in Madison, Wis. to recall Wisconsin Gov. Scott Walker. The effort to recall Walker has been so all-encompassing in Wisconsin, voters and GOP operatives admit to being distracted to the point of not even caring much about the upcoming April 3 presidential primary. (AP Photo/Wisconsin State Journal, Craig Schreiner, File)

Associated Press
FILE - In this March 10, 2012, file photo, labor groups and others rally in front of the state capitol building in Madison, Wis. to recall Wisconsin Gov. Scott Walker. The effort to recall Walker has been so all-encompassing in Wisconsin, voters and GOP operatives admit to being distracted to the point of not even caring much about the upcoming April 3 presidential primary.  (AP Photo/Wisconsin State Journal, Craig Schreiner, File)
FILE - In this March 10, 2012, file photo, labor groups and others rally in front of the state capitol building in Madison, Wis. to recall Wisconsin Gov. Scott Walker. The effort to recall Walker has been so all-encompassing in Wisconsin, voters and GOP operatives admit to being distracted to the point of not even caring much about the upcoming April 3 presidential primary. (AP Photo/Wisconsin State Journal, Craig Schreiner, File)
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