LITTLE ROCK, Ark.- The U.S. Supreme Court says it will hear a case involving an Arkansas effort to regulate companies that pay pharmacies on behalf of health plans. The court on Friday granted Arkansas’ request for a review of the 8th U.S. Circuit Court of Appeals ruling on a state law that would regulate pharmacy benefit managers’ drug reimbursement rates. The appeals court had ruled the 2015 law was preempted by federal law. Attorney General Leslie Rutledge has argued that the appeals court ruling conflicts with past U.S. Supreme Court decisions. Arkansas is among 36 states that have enacted legislation to regulate pharmacy benefit manager reimbursement rates.