In the Supreme Court of the United States, Arizona, et al., petitioners, v. Inter Tribal Council of Arizona, Inc., et al., and Jesus M. Gonzales, et al., respondents [electronic resource] : on writ of certiorari to the United States Court of Appeals for the Ninth Circuit : brief of amici curiae NAACP Legal Defense & Educational Fund, Inc, the Leadership Conference on Civil and Human Rights, and the Anti-defamation League in support of respondents / Ryan P. Haygood, counsel of record [and 13 others]

At issue is whether the National Voter Registration Act of 1993 preempts the Arizona registration requirement of proof of citizenship.