Turn social security, medicare, va, and anything else not authorized by the constitution over to the states and or privatize or just close down, repeal the 16th and 17th, abolish the IRS, EPA, etc, and you CAN cut government by 80% or more. Largest budget item would be the war dept.
The trouble is that it has been going the other way since 1912, and there is hardly an important politician or CEO who wants to turn this thing around. Look at the way the big boys ganged up on poor Dealy just to prove that they are in charge of the government of this country.
All of that would get rid of deficits and pay down the debt.
I would love for that to happen.