The expansion of Medicaid under Obamacare made the opioid epidemic even worse, according to a report commissioned by Sen. Ron Johnson, chairman of the Senate Homeland Security and Governmental Affairs Committee.

The report suggests that because people who were uninsured were able to get government-funded Medicaid coverage under Obamacare, they are now receiving more access to prescription painkillers like OxyContin, and some are selling them illegally on the streets.