Hillary Clinton has just received the endorsement of the Public Employees Federation (PEF). The PEF is a union representing 57,000 professional, scientific, and technical New York State state employees and a member of the AFL-CIO.

She now is the lead candidate in the number of union endorsements with 5 unions plus two locals for a total of approximately 1.25 million workers.  

These include:

UNIONS
Public Employees Federation (57,000)
National Association of Letter Carriers (300,000)
Transportation Communications Union (65,000)
International Association of Machinists and Aerospace Workers (700,000)
United Transport Union (125,000)
International Union of Operating Engineers Local 324 (Michigan)
United Food and Commercial Workers Local 1500 (New York)
Dolores Huerta (United Farm Workers Leader)

Here is the PEF endorsement letter: