MADISON, Wis. (AP) — Wisconsin’s state Supreme Court election in the spring of 2025 already had high stakes, with majority control on the line. But a judge’s ruling on Dec. 2 restoring collective bargaining rights to roughly 200,000 teachers and other public workers in the state further intensifies the contest.

The liberal-controlled court has already delivered a major win to Democrats by striking down Republican-drawn legislative maps. Pending cases backed by liberals seek to protect abortion access in the state and kneecap Republican attempts to oust the state’s nonpartisan elections leader.

Now, the court could be poised to notch another seismic win for Democrats, public teachers and government workers by restoring the collective bargaining rights they lost 13 years ago in a fight that decimated unions, sparked massive protests and emboldened Republicans who later restricted rights for private-sector unions.

Liberals gained the majority on the Wisconsin Supreme Court for the first time in 15 years following a 2023 election that had deep involvement from the Republican and Democratic parties, broke turnout records and shattered the national record for spending on a court race.

Abortion took center stage in that race. Now, it appears that union rights could be a major issue in the 2025 contest to replace a retiring liberal justice.

“You can make the argument that this race is more important than the race for the Legislature or the governor,” said Rick Esenberg, president of the conservative Wisconsin Institute for Law and Liberty, said Wednesday. “I don’t think you can understate the importance of this race to the voters, no matter which side of the political divide you are on.”

The April 1 election will pit Brad Schimel, a Republican judge who supports President-elect Donald Trump and served as Wisconsin’s attorney general from 2015 until 2019, against Susan Crawford, a liberal judge whose former law firm represented teachers in a lawsuit that sought to overturn the anti-collective bargaining law.

The Wisconsin Supreme Court, then controlled by conservatives, upheld the law known as Act 10 in 2014.

Crawford’s past attempt to overturn Act 10 raises questions about whether she could rule objectively on it, Schimel said in a statement to The Associated Press. His campaign on Dec. 2 branded Crawford as a “radical” and said she would be a “pawn” of the Democratic Party if elected.

Schimel, when he was attorney general, said he would defend Act 10 and opposed having its restrictions applied to police and firefighter unions, which were exempt from the law.

Treating public safety workers differently from others makes the law unconstitutional, Dane County Circuit Judge Jacob Frost ruled Dec. 2. He sided with teachers and restored collective bargaining rights, a decision affecting about 200,000 workers in the state, according to the Wisconsin Policy Forum.

The Republican-controlled Legislature promptly appealed.

Crawford’s former law firm is not involved in the current case.

Crawford didn’t directly address a question from the AP about whether she would recuse herself from any case involving Act 10. But her campaign spokesperson, Sam Roecker, said Crawford “will make a decision at that time about whether she can be fair and impartial, based on the particular facts and parties.”

Roecker said Schimel’s immediate condemnation of the court’s ruling on Dec. 2 “shows he has already prejudged this case.” Schimel didn’t respond to a request for comment on whether he would recuse himself from any case involving Act 10.

The appeal of the Dec. 2 ruling striking down Act 10 would typically first be heard by a state appeals court — a process that could take months. But the public workers who sued could ask the state Supreme Court to take the case directly, which would make it possible for a ruling before the new justice is seated in August.

Crawford has been endorsed by the state teachers union, which was gutted after Act 10 became law, as well as the Wisconsin Democratic Party and all four of the current liberal justices on the court. In addition to suing to overturn the anti-union law, Crawford also previously represented Planned Parenthood in a case to expand Wisconsin abortion access.

Christina Brey, spokesperson for the statewide teachers union, the Wisconsin Education Association Council, said she couldn’t speculate about whether Crawford would hear a case challenging Act 10.

Brey said Crawford won the union’s endorsement because “we believe she is going to be the most dedicated and most impartial, constitution-believing judge to put on the Supreme Court.”

Schimel is endorsed by Republican Sen. Ron Johnson, all five of the state’s Republican congressmen, the conservative group Americans for Prosperity, and a host of law enforcement agencies and officials, including 50 county sheriffs.

If Crawford wins, liberal control of the court would be locked up until at least 2028, the next time a liberal justice is up for election.

Candidates have until Jan. 1 to enter the April 1 race. The winner will serve a 10-year term.