Even when the Supreme Court tells a government labor union that it can’t do something, there’s no guarantee that the union will comply. In its 2014 Harris v. Quinn decision, the Court ruled that an Illinois law forcing home health-care workers—paid with Medicaid funds—to shell out cash to labor unions was unconstitutional. That should have ended unions’ ability to collect fees from these workers—many of whom were not really professionals but were receiving a small subsidy from Medicaid to care for disabled family members at home—unless the workers agreed to join the union.  The administration announced it will enforce the ruling.