Union workers hold up a signs during a rally outside the Capitol 

Union workers hold up a signs during a rally outside the Capitol in Lansing, Mich., Thursday, Dec. 6, 2012 as Senate Republicans introduced right-to-work legislation in the waning days of the legislative session.  (AP Photo/Carlos Osorio)
Associated Press
Union workers hold up a signs during a rally outside the Capitol in Lansing, Mich., Thursday, Dec. 6, 2012 as Senate Republicans introduced right-to-work legislation in the waning days of the legislative session. (AP Photo/Carlos Osorio)
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