After World War II, the National Debt was reduced from 120% to 30% of GDP by 1981. Then Ronald Reagan was elected president.
To pay off debt and fund the growing pains of a nation becoming an expanding global empire, Congress passed the 16th Amendment to the Constitution on February 3, 1913 establishing Congress’s right to impose a Federal income tax.
Former President G. W. Bush is responsible for more than $6 Trillion of the National Debt. That is almost 38%.