Casino opponents are heading to federal court in their bid to block the Mashpee Wampanoag tribe's plans to build a resort in southeastern Massachusetts.
Lawyers for 25 Taunton residents opposed to the project are expected to argue Monday in Boston federal court that the U.S. Department of Interior wrongly placed 151 acres of land in trust for the Cape Cod-based tribe.
The group argues in its February lawsuit that the department's decision was based on a faulty interpretation of the Supreme Court's ruling in a 2009 case involving the Narragansett Indian tribe in neighboring Rhode Island.
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The Mashpee Wampanoag tribe, which isn't a party in the suit, broke ground on its First Light Resort and Casino in April. It hopes to open the first phase next summer.