More than 500 Chicago charter school teachers, represented by the Chicago Teachers Union (CTU), carried out the nation’s first charter school strike. The four-day strike forced Acero Charter Schools, the operator of 15 Chicago charter schools, to cancel class for approximately 7,500 students. While the terms of the four-year tentative agreement are not immediately available, the CTU announced that the union made progress on their objectives, which included reduced class sizes, enhanced special education staffing, and ensuring that its members’ compensation matches that of traditional Chicago Public School (CPS) teachers, who earn 15 percent more than Chicago charter school teachers. The CTU also disclosed that the tentative agreement included “sanctuary protections,” which prohibit Acero from disclosing information to federal immigration authorities about undocumented students. 

Kaiser Permanente mental health workers, represented by the National Union of Healthcare Workers (NUHW), engaged in a five-day strike at more than 100 California clinics and medical facilities over insufficient staffing that resulted in California assessing a $4 million fine against Kaiser. The California Nurses Association (CNA) and the International Union of Operating Engineers (IUOE) Local 39 joined the NUHW in a sympathy strike.