Groups representing insurers, doctors and consumers are discouraging the administration from accepting pharma-backed alternatives to the president’s executive order that ties Medicare reimbursement to the lowest prices among developed countries. That executive order still isn’t public, but President Donald Trump said he signed it last week. Summaries of two drug industry proposals circulated this week after passage Trump’ deadline for industry to negotiate a deal. Although lacking detail, drug makers offered two voluntary demonstrations, one for Medicare Part B and...