In the wake of the order, the union is calling on Station Casinos to begin contract negotiations immediately, saying that if it does not do so it will be in violation of federal law. The union’s secretary-treasurer Geoconda Arguello-Kline said in a statement that she was “disappointed” the company decided to litigate its challenges.

“We urge Station Casinos to recognize their workers’ voices and votes at Green Valley Ranch and the Palms, and begin contract negotiations in good faith immediately,” Arguello-Kline said.