… River across from Windsor, Canada. In March, a cabinet … environmentalists and others like Native American tribes say would be … district court, where the Canadian oil giant argued federal regulators … in Michigan, Wisconsin and Canada, according to a state- …… River across from Windsor, Canada. In March, a cabinet … environmentalists and others like Native American tribes say would be … district court, where the Canadian oil giant argued federal regulators … in Michigan, Wisconsin and Canada, according to a state- …