Ring up a big union endorsement for aspiring Missouri Attorney General Rep. Margaret Donnelly (D-Richmond Heights) and State Treasurer candidate State Rep. Clint Zweifel (D-Florissant).

The Missouri State Council of the Service Employees International Union (SEIU) are putting their might and mettle behind both Democratic candidates.

The union represents 14,000 workers in health care, public sector and building services.

In a statement released by the Donnelly campaign, Donnelly is thankful for the endorsement, plugging that they “will make history when I am elected Missouri’s first woman Attorney General.”