 In 2007, a gender discrimination lawsuit, "Dukes v. Walmart Stores, Inc.", was filed against Walmart, alleging that female employees were discriminated against in matters regarding pay and promotions.A class action suit was sought, which would have been the nation's largest in history, covering 1.5million past and current employees.On June 20, 2011, the United States Supreme Court ruled in Walmart's favor, stating that the plaintiffs did not have enough in common to constitute a class.