A group of six unions led by the American Federation of Government Employees sued the Trump administration over its rollback of collective bargaining rights, arguing that the administration has taken an overly broad view of agencies that work primarily in national security.

A federal judge blocked the administration from enforcing the executive order in April, but an appeals court stayed that decision this summer and allowed agencies to keep canceling collective bargaining agreements that cover broad swaths of the federal workforce. Since the appeals court’s ruling, several agencies have rescinded their collective bargaining rights with unions.