Federal Grants to State and Local Governments: A Historical Perspective on Contemporary Issues [March 5, 2015] [open pdf - 502KB]
"The federal government is expected to provide state and local governments more than $628 billion in federal grants in FY2015, funding a wide range of public policies, such as health care, transportation, income security, education, job training, social services, community development, and environmental protection. Federal grants account for about one-third of total state government funding, and more than half of state government funding for health care and public assistance. Congressional interest in federal grants to state and local governments has always been high given the central role Congress has in determining the scope and nature of the federal grant-in-aid system, the amount of funding involved, and disagreements over the appropriate role of the federal government in domestic policy generally and in its relationship with state and local governments."
CRS Report for Congress, R40638
Federation of American Scientists: http://www.fas.org/sgp/crs/index.html