Here is the petition in Citizens Against Casino Gambling in Erie County v. Chaudhuri:

2015 12 14 Petition for Writ; Citizens Against Casino Gambling in Erie County et al v Chaudhuri et al

Questions presented:

1. Whether Congress, by enacting legislation permitting an Indian tribe to purchase land on the open market and to hold it in “restricted fee,” created “Indian country,” thereby completely divesting a state of its territorial sovereignty over that land, despite the absence of any explicit statutory language reflecting congressional intent to transfer sovereignty to the tribe?

2. Whether the Indian Commerce Clause (U.S. Const., art. I, § 8) gives Congress authority to completely divest a state of the sovereignty it had
previously exercised over land for more than two centuries and transfer that sovereignty to an Indian tribe by enacting legislation permitting an Indian tribe to buy such land on the open market and to hold it in “restricted fee.” 

3. Whether the mere congressional designation of “restricted fee” status on tribally owned land pursuant to the Indian Nonintercourse Act (25 U.S.C. § 177) implies an intent to transfer governmental power over that land to the tribe?

Lower court materials here.