The LMRDA covers both workers and unions covered by the National Labor Relations Act ("Wagner Act") and workers and unions in the railroad and airline industries, who are covered by the Railway Labor Act. The LMRDA does not, as a general rule, cover public sector employees, who are not covered by either the NLRA or the RLA. The LMRDA likewise does not displace state laws governing unions' relations with their members except to the extent that those state laws would conflict with federal law.