Description: National Nurses United (NNU) is the largest U.S. organization representing registered nurses, formed through the merger of major state nurses' associations. NNU organizes bedside nurses, engages in collective bargaining, and advocates for patient safety, safe staffing, public health protections, and universal, single‑payer healthcare. Type: Labor union / national nurses' union (trade union) Policies: Typically pursues legislation on safe nurse staffing ratios and patient safety, collective bargaining and workplace protections for nurses, public health and pandemic preparedness measures, opposition to healthcare privatization, and support for Medicare for All and related universal healthcare reforms; also advances nursing home staffing standards, worker and racial justice, and protections for frontline healthcare workers. Funding: Primarily funded by member dues from affiliated state and local nurses' unions, supplemented by political contributions, PAC fundraising, and donations for advocacy campaigns. Affiliates: California Nurses Association (CNA), National Nurses Organizing Committee (NNOC) and other state nurses' associations; prominent leaders have included Bonnie Castillo and RoseAnn DeMoro.