Government Spending includes federal, state, and local spending. Intergovernmental transfers represent federal grants and transfers
spent by states or local governments on programs at the state or local level.
You can look at details of the data here. You can look at
deficits here and debt here. You can create custom charts
here and download data here.
You can look at the federal budget here. You can take a course in spending here.
On July 12, 2016, the Congressional Budget Office released its annual Long Term Budget Outlook for 2016, which projects federal spending and revenue out into the 2040s. As before, the CBO study shows that federal health-care programs will eat the budget, with federal spending exceeding 28 percent GDP by mid century while federal revenue stays below 20 percent GDP.
UsGovernmentspending.com has updated its chart of the CBO Long Term Budget Outlook here. You can download the data and also view CBO Long Term Budget Outlooks going back to 1999.