Two thirds of our almost $4 trillion budget is spent on the entitlement programs, food stamps, etc, It is on automatic pilot and will consume the entire budget if these programs are not reformed.
This doesn’t include a deduction for what Americans paid into SS and Medicare. As Reagan would say ‘we paid for this mic’.
Medicare and medical costs will collapse with the collapse of Obamacare. If the GOP follows up quickly with a Commerce Clause based attack against unconstitutional local/county/state restraint of trade via zoning/permitting laws, it will drop even faster.