Service Employees International Union
US Labour union representing service, health-care and public-sector workers.
On 18 September 2026, Service Employees International Union joined a federal challenge over immigration agents at US polling places, reflecting the US Labour union's role beyond workplace bargaining.
Last refreshed: 24 September 2026
Timeline for Service Employees International Union
Mentioned in: NAACP sues DHS over ICE at the polls
US Midterms 2026Background
Service Employees International Union is a US Labour union representing service, health-care and public-sector workers. Its membership also includes property-services workers, and its organising base extends across the United States and Canada.
the Union matters because it combines workplace representation with public advocacy affecting its members. On 18 September 2026, it joined civil-rights groups seeking to keep immigration agents away from polling places, an intervention tied to concerns affecting many service-sector and public-sector workers.
Its broad membership gives the Union a stake in Labour conditions, public services and civic participation. The September 2026 case illustrates that its public role can extend beyond collective bargaining when member communities face wider policy risks.