In the complaint, filed Monday in U.S. District Court for the District of Columbia, Chris Mosquera of Rockville seeks to have an action by Secretary of Labor Hilda Solis overturned.
At issue is her decision to repeal a rule that would have increased the amount of information unions had to disclose publicly about their finances, said Patrick Semmens, the director of legal information for the National Right to Work Legal Defense Foundation, which is representing Mosquera.
The nonprofit foundation opposes forced unionization and provides free legal aid for employees.