The current debt is approx $30 trillion. Interest on that debt annually is about $0.45 trillion.
The largest budget items are Medicare/Medicaid (an unconstitutional program) at $1.26 trillion annually, and
Social Security (an unconstitutional program) at $1.099 trillion.
The military is only $0.719 trillion by comparison.
All taxes combined brought in $4.05 trillion.
The debt is now currently 126.64% of the GDP.
Source: US Treasury, US Federal Reserve, US Congressional Budget Office
the 800 lb gorilla in your room are unfunded obligations running somewhere between 120 and 200 trillion.
given that there are like 5 sources of borrowing and that 4 of them are either drawing back what they have traditionally done or in the case of the entitlements starting taking money back out as their reserves are no more leaving only the Fed. and borrowing from the fed causes inflation.
now you can cut that 10% anywhere you like so long as the total dollars spent is no more than 90% of present.
but as borrowing sources dry up and entitlements shift from lenders to accounts payable the ability to service the debt becomes impossible.