Core Point - A federal judge has ruled against customers attempting to sue Burger King regarding the advertising of its Whopper sandwiches, stating that the claims are too varied to warrant a nationwide class action certification [1] Group 1 - The lawsuit against Burger King involves customers who allege misleading advertising related to the Whopper sandwiches [1] - The judge's decision indicates that the claims presented by the customers lack sufficient commonality to form a class action [1] - This ruling represents a significant legal hurdle for the plaintiffs seeking to challenge Burger King's advertising practices on a national scale [1]