The Trump Administration and new Congress have indicated that they will seek to cap Medicaid financing through a block grant or per capita cap, reduce federal funding for the program, and offer states increased flexibility to manage their programs within this more limited financing structure. The size of the federal reductions as well as which federal program standards would remain in place and what increased flexibility might be provided to states under such proposals would have significant implications. To help inform discussion around increased flexibility, this brief provides an overview of current federal standards and state options in Medicaid and how states have responded to these options in four key areas: eligibility, benefits, premiums and cost sharing, and provider payments and delivery systems.