Millions of children age 5 and under participate each year in federally funded preschool and other early learning programs, or receive federally supported child care. Federal support for early learning and child care has evolved over time to meet emerging needs. In 2012, GAO reported that multiple federal agencies administer numerous early learning and child care programs. GAO was asked to re-examine federal programs that provide or support early learning and child care. This report examines 1) the federal investment in early learning and child care programs; 2) fragmentation, overlap, and duplication among early learning and child care programs and agencies' efforts to address these conditions; and 3) the extent to which agencies assess performance for programs with an explicit early learning or child care purpose. GAO analyzed responses to questionnaires from nine agencies and one regional commission; reviewed budget and tax expenditure documentation, evaluations, annual program performance results, and other agency documentation; and interviewed officials from HHS, Education, and Interior. (author abstract)