The Miccosukee Tribe, that's who.
The causes of action are somewhat unusual:
57. The United States, acting by and through the Defendants, by engaging in the acts described herein, including, but not limited to, tax examinations without a uniform set of standards or procedures against the MICCOSUKEE TRIBE and its People, receiving unauthorized personal financial records of Tribal members, and engaging in improper dealings with individuals whose legal interests were clearly in conflict and adverse to the legal interests of the MICCOSUKEE TRIBE and its People.It will be interesting to see the motion to dismiss briefing on this one.
(I like to watch.)