CHICAGO — A Wisconsin judge has refused the state's request to stay during the appeals process his ruling that overturned portions of a controversial law curtailing collective bargaining rights for most public unions.

Dane County Judge Juan Colas last month overturned portions of the law affecting local governments as part of a lawsuit filed by unions in Milwaukee and Madison. He found they violated free-speech rights and the equal protection clause of the state constitution because safety personnel unions were excluded.

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