Officials only said that unionized workers voted separately at each of the three Detroit properties, and that “more bargaining dates” would be scheduled for negotiations. The Detroit Casino Council, which represents unionized casino workers from several unions, did not say why MGM Grand Detroit employees rejected the tentative deal with the company. 20 after voting down the tentative contract agreement reached with the company. However, unionized casino workers at MGM Grand Detroit were still on strike Monday, Nov. DETROIT – After reaching a tentative union contract last week with three Downtown Detroit casinos, unionized workers at two of the casinos voted to ratify the deal to officially end their strike over the weekend.
