CRS report via FAS: Federal Research and Development Funding: FY2018, John F. Sargent Jr., Coordinator, Specialist in Science and Technology Policy. July 31, 2017.
“President Trump’s budget request for FY2018 includes $117.697 billion for research and development (R&D). This represents a $30.605 billion (20.6%) decrease from the FY2016 actual level of $148.302 billion (FY2017 enacted levels were not available at the time of publication). Adjusted for inflation, the President’s FY2018 R&D request represents a constant dollar decrease of 23.6% from the FY2016 actual level…”

Steven Aftergood, Secrecy News: “The Trump Administration budget request would cut federal spending on research and development in every major agency except for the Department of Defense and Veterans Affairs, the Congressional Research Service said yesterday in a new report. “Nearly every federal agency would see its R&D funding decrease under the President’s FY2018 request compared to their FY2016 levels,” the CRS report said. “The largest declines (as measured in dollars) would occur in the budgets of HHS (down $6.099 billion, 18.9%), DOE (down $1.809 billion, 11.9%), USDA (down $666 million, 25.1%), NSF (down $639 million, 10.6%), and the EPA (down $239 million, 46.3%).” Federal R&D is generally understood to provide support for scientific, medical, military and other research of economic, social, security or other value that would not normally be undertaken by the private sector. Reducing R&D therefore means foregoing the benefits that might otherwise accrue from such investment…”