Public sector unions contend with declining membership, reduced political power and restricted collective bargaining rights. //end headline wrapper ?> Wisconsin capitol protests during the passing of the controversial Act 10. Photo by Patti Wenzel When tens of thousands of union members and supporters flocked to the state Capitol a decade ago, they warned that Gov. Scott Walker‘s collective bargaining bill could redefine organized labor in Wisconsin. They were right. Walker, a freshly sworn in Republican, formally introduced the plan on Feb. 11, 2011, describing it as a “modest” chang...