Seven unions representing teachers and other public workers in Wisconsin filed a lawsuit Thursday attempting to end the state’s near-total ban on collective bargaining for most public employees.

Unions in Wisconsin sue to reverse collective bargaining restrictions on teachers, others

Related:

Wisconsin’s Act 10 Is in Jeopardy (WSJ)

The law, signed by former Gov. Scott Walker, has saved the Badger State from turning into Illinois or New York, where public unions essentially run the state government for their own benefit. According to the MacIver Institute, Act 10 has saved Wisconsin taxpayers $16.8 billion since it was passed in 2011, making public finances more manageable at every level of government.

Progressive mayors who publicly rail against the law know that repealing it would wreak havoc on municipal budgets. According to Wisconsin Right Now, Milwaukee’s budget says it has saved about $345.4 million in health insurance since 2012 because of Act 10’s requirement that public employees contribute to their health plans.

The lawsuit by teachers and other public unions focuses on a narrow part of the law that exempts public-safety employees. The unions say this creates a “favored” class of workers and imposes “severe burdens on employees in the disfavored group.” Act 10’s “anti-democratic regime,” the unions continue, subjects “general” employees “to a panoply of burdens and deprives them of important rights,” while exempting police officers and firefighters from “all its injurious provisions.”

Attacks on Public-Sector Unions Harm States: How Act 10 Has Affected Education in Wisconsin

A Decade After Act 10, It’s A Different World For Wisconsin Unions

WSJ quotes MacIver Institute, from the Atlas Network via State Policy Network, Bradley Foundation, and Americans for Prosperity (Kochtopus). Former WI Governor Scott Walker, another Atlas/Koch tool, does not rule out intervening.