FIGHTING SIOUX Sue
The NCAA attempted to prevent the University of North Dakota from continuing its use of FIGHTING SIOUX as the names of its athletic teams. UND has sued the NCAA, alleging that the NCAA breached its obligations to UND in the manner in which the NCAA has applied its 'Indian nickname' rule. UND has succeeded at the interim relief stage
This website alleges that while there was support for changing the name, a wealthy donor (after whom a UND arena was subsequently named) demanded that the name be kept.