A federal lawsuit, "Diaz v. Brewer", formerly "Collins v. Brewer", challenging Brewer's action is being heard in federal court. The plaintiffs, represented by Lambda Legal, a LGBT rights advocacy group, asked for summary judgment based on due process and equal protection claims. On July 23, 2010, U.S. District Judge John W. Sedwick denied the due process claim, but based on the equal protection claim he issued a temporary injunction blocking enforcement of the law pending a trial. Brewer appealed the decision to the United States Court of Appeals for the Ninth Circuit, which sided with Sedwick and ruled against her. The state appealed to the Supreme Court, which denied the appeal, letting the Ninth Circuit ruling stand.