Our founders intended the nation’s currency to be fiat, which is evidenced by Article 1: Section 8 that mandates Congress to “coin” it as needed for the “common welfare”. The federal government can afford anything that is available for sale and priced in US dollars, regardless of its revenue. At the macro-level economics has very little to do with money and everything to do with real resources. Taxation is inflation control and a way to achieve social goals, not revenue to spend. Our government is not funded by our taxes or borrowing. We are funded by our government and the power of the purse given to Congress by the Constitution.