(June 6, 2018, 11:56 AM EDT) -- CLEVELAND — The Ohio federal judge overseeing the opioid multidistrict litigation on June 4 assigned a magistrate judge to work with Native American tribes to develop a separate track for tribal claims (In Re: National Prescription Opiate Litigation, MDL Docket No. 2804, No. 17-2804, N.D. Ohio, Eastern Div.)....