Federally qualified health centers (FQHCs) are a key source of primary care for people without health insurance and are one of the only sources of low-cost care for undocumented immigrants. In this seminar, part of the Center's 2016 Health Policy Seminar Series, Center Associate Director Steven P. Wallace discusses the findings from an upcoming joint study with The Commonwealth Fund on the national impact of the Affordable Care Act (ACA) on FQHCs. How did state decisions for and against the expansion of Medicaid impact the proportion of uninsured patients served by the FQHC safety-net? How well have FQHCs coped with the influx of newly-insured patients in terms of staffing and funding? Have FQHCs been able to meet the needs of the remaining uninsured, particularly the undocumented?