In an interview with the Washington Post, Donald Trump vowed to force drug companies to negotiate directly with the government on prices in Medicare and Medicaid. It's unclear what, if anything, Trump intends for Medicaid; drug makers are already required to sell drugs to Medicaid at the lowest price they negotiate with any other buyer. For Medicare, Trump didn't offer any more details about the intended negotiations, but he's referring to his campaign proposals to allow the Department of Health and Human Services to negotiate directly with manufacturers the prices of drugs covered under Medicare Part D.