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Add one more to Vince Gray‘s stack of labor endorsements. Later this morning, the Maryland and D.C. Council for the Service Employees International Union plans to announce an endorsement for Gray.

In a press release, the union pointed to Gray’s signature on a bill granting driver’s licenses to undocumented immigrants as one of the reasons behind the endorsement.

“Mayor Gray’s track record for strengthening responsible contracting laws and helping immigrants lead more productive lives speaks louder than campaign promises,” Council president Jaime Contreras said in a statement.

Photo by Darrow Montgomery