Andrew Bahl:

A challenge to one of Wisconsin’s most high-profile laws of the last 15 years — restricting the collective bargaining rights of public sector unions — has taken another turn on its way through the court system.

The Wisconsin Supreme Court ruled Wednesday that a case involving Act 10 must first proceed through a conservative-leaning appellate court before it may come back to the state’s top justices.

The decision involves a Dane County judge’s ruling last year that large portions of Act 10 are unconstitutional. If ultimately upheld by higher courts, the decision would have a major effect on the working conditions of public employees, such as teachers, state workers and some law enforcement officers. A ruling that ends Act 10 also could affect the finances of state and local governments across Wisconsin.

The decision Wednesday — which was accompanied by Justice Janet Protasiewicz’s decision not to recuse herself from a future ruling on Act 10 — means the case likely won’t be heard by the high court until after an April election that will determine whether left-leaning or right-leaning justices have a majority.

Here’s what to know about the latest court challenge to Act 10.

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Notes and links on Act 10

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