Worst case, the US
federal reserve prints another trillion dollars to pay back the debt, deliberately triggering hyperinflation which makes the debt worth next to nothing (Russia and Germany both did this in the early 20th Century).
Not exact matches
The
federal reserve controls the fiscal policy and the incentive behind
printing money by changing the discount rate.
The
federal reserve bank does so by making more (
printing, decreasing interest rates) or less (increasing interest rates) available to the economy.
The dollar has lost 95 % of its value since the
federal reserve's creation, and since the
printing presses have been running full blast since the 1970's, the US has gone from the largest creditor to the world's largest debtor.