Rolling back ObamaCare’s Medicaid expansion has become the focal point of the health-care debate, and rightly so. Without fundamental change, Medicaid—expanded or not—will push state budgets to the brink even as it fails to help the most financially vulnerable Americans.

Consider Oklahoma, our home state. Despite intense lobbying by hospital corporations, the state Legislature stood strong and refused the Medicaid expansion. But the Medicaid rolls increased anyway, and at a dramatic cost to priorities like education, public safety and transportation.

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