In the Supreme Court of the United States, Richard Armstrong, et al., petitioners, v. Exceptional Child Center, Inc., et al., respondents [electronic resource] : on writ of certiorari to the United States Court of Appeals for the Ninth Circuit : amici curiae brief of the American Civil Liberties Union [and 3 others] in support of respondents / Steven R. Shapiro, counsel of record, [and 7 others]

The question presented is whether Medicaid providers have a right of action to challenge a state's Medicaid rates.