Question: Briefly explain the U.S. Supreme Court decision regarding the Affordable Care Act as to whether the choice to expand or not expand Medicaid was to be left up to each state. Briefly explain the U.S. Supreme Court decision regarding the Affordable Care Act as to whether the choice to expand or not expand Medicaid was to be left up to each state. Briefly explain the U.S. Supreme Court decision regarding the Affordable Care Act as to whether the choice to expand or not expand Medicaid was to be left up to each state. Briefly explain the U.S. Supreme Court decision regarding the Affordable Care Act as to whether the choice to expand or not expand Medicaid was to be left up to each state.