Costco is fighting a class-action lawsuit alleging deceptive advertising regarding its popular rotisserie chicken. The lawsuit claims Costco falsely advertised the chicken as preservative-free. Lawyers for Costco argue the case is without merit and should be dismissed, labeling it “fatally flawed.” They contend the chicken’s ingredients and labeling comply with regulations. The suit alleges Costco systematically misled customers with its marketing. A judge will ultimately decide whether the lawsuit can proceed, but Costco is strongly defending its practices and product labeling. The rotisserie chicken is a well-known value item for the warehouse retailer.