Gov. Scott Walker backed a surprise move Friday by Republican legislators to quickly vote on making Wisconsin a right-to-work state, an action the likely 2016 presidential candidate initially said should be delayed to avoid reigniting massive pro-union protests.

Walker had expressed concerns to leaders in the GOP-controlled Legislature that rushing the divisive proposal could distract from his agenda. In September — during the heat of his re-election campaign — he said he wouldn’t support it this session.

But after a series of private meetings with lawmakers, followed by an announcement that the bill would be voted on next week, Walker’s spokeswoman, Laurel Patrick, said he would sign it.

Walker walked past reporters, declining to answer questions, at a National Governors Association meeting Friday in Washington.

Under right to work, unions are prohibited from reaching labor deals with businesses that require workers to be union members, or pay dues or fees to the union. Twenty-four other states already have the laws in place.

Walker rose to prominence in 2011, when he pushed through a law known as Act 10 that effectively ended collective bargaining for most public workers. That led to protests involving as many as 100,000 people at the state Capitol and a 2012 recall election that Walker won.

Unlike Act 10, which Walker proposed, the right-to-work push is coming from Republicans who control the Legislature.

“I think we can do this next week without it getting really ugly,” said Republican Senate Majority Leader Scott Fitzgerald. “We’ll see next week whether the Capitol blows up. I don’t know.”

Unions were quick to criticize but were silent about whether they planned to organize massive rallies like those that went on for weeks in 2011.

Right to work is a “false promise for Wisconsin,” said Phil Neuenfeldt, president of the Wisconsin AFL-CIO, in a prepared statement. “Right to Work will not create jobs and will lower wages for all workers,”

Proponents of right-to-work argue it will make Wisconsin more competitive and that workers should have the freedom to decide whether to pay and join a union, rather than having dues automatically withdrawn.

Even without a right-to-work law, union membership has been declining in Wisconsin. Last year, 11.7 percent of workers belonged to unions, based on figures from the U.S. Bureau of Labor Statistics. That’s down from 12.3 percent in 2013 and 14.2 percent in 2010, the year before the public union changes.

Fitzgerald said there would be a public hearing on Tuesday followed by debate starting Wednesday. The Assembly won’t take up the bill until the week of March 2, he said.

Fitzgerald defended the fast track, saying the issue has been around long enough for people to know where they stand before the Senate votes. He said he wanted to move quickly because he had secured the 17 votes necessary to get it passed and he worried that if unions started television ads targeting senators, support may dwindle.

“I lay awake at night losing sleep over that all the time,” he said.