Mary Kay Henry
Service Employees International Union
Henry has been president of the SEIU since 2010, the first woman to be named to head the nation’s largest healthcare union. It represents more than 1 million workers at hospitals, skilled-nursing facilities and in home care. During the pandemic, union members have held protests and strikes against hospitals and health systems nationwide, including HCA Healthcare and Tenet Healthcare Corp. facilities, over staffing issues, pay and personal protective equipment, among other issues.