Immigrant rights advocates plan to hold a protest in downtown Phoenix on the day that the U.S. Supreme Court hears arguments over Arizona’s 2010 immigration enforcement law. Organizers of the April 25 rally say they will protest the state’s immigration law and other state and federal policies that they contend erode civil rights. On that same day, the U.S. Supreme Court will hear arguments in Gov. Jan Brewer’s appeal of a ruling that blocked police from enforcing the law’s most controversial elements. U.S. District Judge Susan Bolton has halted enforcement of a requirement that police, while enforcing other laws, question people’s immigration status if officers suspect they are in the country illegally.