In the Supreme Court of the United States, the State of Arizona, et al., petitioners, v. the Inter Tribal Council of Arizona, Inc., and Jesus M. Gonzalez, et al., respondents [electronic resource] : on writ of certiorari to the United States Court of Appeals for the Ninth Circuit : brief of the League of Women Voters as amicus curiae in support of respondents / Paul M. Smith, counsel of record [and 4 others], counsel for amicus curiae.

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