Sections of the law "single out and encumber the rights of those employees who choose union membership and representation solely because of that association and therefore infringe upon the rights of free speech and association guaranteed by both the Wisconsin and United States Constitutions."
He also said the law violates the equal protection clause by creating separate classes of workers who are treated differently and unequally.
His ruling applies to all affected public workers. They include teachers as well as city and county employees. Excluded are state ones.
They weren't party to the lawsuit. Unions representing Madison teachers and Milwaukee public workers filed it.
Walker said said he'll immediately appeal. He called Judge Colas a "liberal activist (who) wants to go backwards and take away the lawmaking responsibilities of the legislature and the governor. We are confident that the state will ultimately prevail in the appeals process."
Wisconsin Department of Justice spokeswoman Dana Brueck called the law constitutional. Republican Attorney General JB Van Hollen said the same thing. What else would they say.
Unions declared victory. According to Madison teachers union attorney Lester Pines:
"The decision essentially creates the (2011) status quo for municipal employees and school district employees because it declared the essential provisions of Act 10 to be unconstitutional."
Act 10 is Walker's law. Pines expects litigation to remain ongoing. He's "confident that this law is unconstitutional and will remain" so.
In other words, he's saying they can renegotiate for rights Walker annulled. He, in turn, may seek a stay pending the Supreme Court's ruling.