To use more rigorous methods for estimating cost savings that supposedly will be generated by changes in the state Medicaid program associated with its expansion under the federal health law. If savings are not realized then supposedly the state will tell the federal government to stop funding some $3 billion in increased annual managed care contracts with Michigan hospitals under the expansion. Specifically, the amendment would require supposed "savings" in medical welfare costs to be measured in terms of whether actual spending goes up or down, rather than with metrics that depend on figures reported by hospitals.