MADISON, Wis. (AP) – The Wisconsin Supreme Court is set to rule on the 2011 law that effectively ended collective bargaining for most public workers, sparked massive protests and led to Gov. Scott Walker’s recall election. The court was scheduled to release its decision Thursday in a case challenging the constitutionality of the law. It was filed by the Madison teachers union and a union representing Milwaukee public workers. They had argued that the law violated workers’ constitutional rights to free assembly and equal protection. A federal appeals court twice has upheld the law as constitutional. The law prohibits public worker unions from collectively bargaining for anything beyond base wage increases based on inflation.