Local union leaders say Wednesday’s Supreme Court decision in the Janus case delivered a huge blow, potentially risking their bargaining power.By a vote of 5-4, the Supreme Court ruled in favor of Illinois state government worker Mark Janus, who did not wish to participate in a labor union. The ruling reverses a 41-year precedent of allowing states to require public employees to pay union dues even if they are not union members. It was early morning news on the West Coast, and the reaction from Democratic politicians and union members was swift.Washington Sens. Patty Murray and Maria Cantwell, both Democrats, condemned the decision. The Washington Education Association, the state teachers’ union, called it an effort by “extremist billionaires and corporate interests” to hurt “the freedoms of working-class people.” And in a joint statement, Democratic Gov. Jay Inslee and Attorney General Bob Ferguson said the ruling would compromise “the ability of law enforcement, sanitation workers, educators and other public employees to collectively organize.”“The reality is that all workers benefit from strong unions and their bargaining activities,” they wrote. “Washington has been and will remain a state that believes in and supports the rights of all workers to organize, in both the public and private sector.”In Vancouver and around the state, union members rallied to protest the decision. Dozens of people gathered at the intersection of East Mill Plain and Fort Vancouver Way around lunchtime, waving signs reading “Union Strong” and waving at motorists who honked their horns in support.