The authors examined two categories of federal spending over the past 50 years, representing two of government’s fundamental missions. One was “investments,” which includes maintaining our national infrastructure, keeping our military equipped, helping assure that our work force is educated to a high standard, and underwriting the kind of basic scientific research that is too risky or long-term to attract private money. The report calls this the legacy of President Kennedy’s New Frontier, though the largest infrastructure project in our history, the interstate highway system, was Eisenhower’s baby, a reminder of the days when Republicans still believed in that stuff. The other category was “entitlements,” a catchall word for the safety-net programs that provide a measure of economic stability for the aging and poor: Social Security, Medicare, Medicaid, etc.
You will not be surprised to hear that the red line tracking entitlements goes up while the blue line reflecting investments goes down.