Medicare Trustees lowered their estimated spending projections for retail drugs in large part because rebates are bigger than they expected, and the health insurance lobby says that finding bolsters their case against HHS’ plan to eliminate rebates. Conversely, the trustees slightly increased projected Medicare spending on drugs administered by physicians, which aren’t subject to rebates. “Based on historical data, the Trustees continue to project slight increases to future rebates from the 2019 level throughout the projection period,” the trustees state...