MADISON, Wis. — The fight over stripping collective bargaining rights from Wisconsin’s public workers will move into the state Supreme Court, and possibly back into the Legislature, after a judge ruled Thursday to strike down the law that passed despite massive protests that paralyzed the Capitol.

Republican backers of Gov. Scott Walker’s proposal said they were confident the state Supreme Court would overturn the judge’s ruling that the law is void because lawmakers broke open meetings statutes during the approval process.

The Supreme Court was scheduled to hear arguments in the case on June 6. Republicans who control the Legislature also could pass the measure a second time to avoid the open meeting violations.

Still, Democrats and union leaders praised the victory, even if it could be fleeting.

“It tells legislators `You can’t be arrogant,”‘ said Marty Beil, executive director of the state’s largest public employee union. “You have to do it in the light of day. You can’t take stuff away from people in a backroom deal.”