A recent study by Express Scripts Holding found that about a quarter of Medicaid patients were prescribed an opioid in 2015. Wisconsin Sen. Ron Johnson presents intriguing evidence that the Medicaid expansion under ObamaCare may be contributing to the rise in opioid abuse. According to a federal Health and Human Services analysis requested by the Senator, overdose deaths per million residents rose twice as fast in the 29 Medicaid expansion states—those that increased eligibility to 138% from 100% of the poverty line—than in the 21 non-expansion states between 2013 and 2015.

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