Miccosukee Tribe of Indians of Florida v. United States

PRYOR, Circuit Judge:

This appeal presents three issues: (1) whether the Miccosukee Tribe may assert tribal sovereign immunity to quash summonses issued to third-party financial institutions by the Commissioner of the Internal Revenue Service to obtain tribal financial records relevant to an ongoing tax investigation; (2) whether the Commissioner issued the summonses for a proper purpose; and (3) whether the Tribe has standing to bring an overbreadth challenge to summonses issued to third parties and, if so, whether the summonses were over-broad. In 2010, the Commissioner issued four summonses…