Congress is currently debating the American Health Care Act (AHCA), which would repeal and replace the Affordable Care Act (ACA) and also make substantial changes to the structure and financing of Medicaid. Among other provisions, the AHCA would use a per capita cap policy to cap federal funds to states for Medicaid. This data note examines what the implications of tying per enrollee growth to CPI-M would have been for the 2001-2011 period for federal spending nationally and state-by-state by major enrollment group. This analysis is meant to illustrate how actual spending compares to spending limits that would have been in place if growth rates had been limited to CPI-M, similar to the limits proposed by the AHCA.