On June 27, the U.S. Supreme Court handed down a 5-to-4 decision in Janus v. American Federation of State, County, and Municipal Employees, Council 31 that profoundly affects the future of workers’ rights, democratic decision-making in the workplace, and the preservation of good jobs in public employment.

We spoke out. At town and city councils. Before local and state elected officials. We gathered in our hospitals and...