This Is Just How Badly Scott Walker Has Decimated Public Schools in Wisconsin -- Mother Jones

In the six years since Wisconsin Gov. Scott Walker signed the union-busting Act 10, which curtailed collective bargaining rights for public employees, the state's labor movement has been decimated. Wisconsin was once a leader in organized labor, but its share of workers belonging to unions plummeted from 14.2 percent in 2010 to 8.1 percent in 2016. ....
http://www.motherjones.com/politics/2017/11/this-is-just-how-badly-scott-walker-has-decimated-public-schools-in-wisconsin/