Both Republicans and Democrats own the national debt
National debt as share of GDP, from fiscal years 1940 to 2020
Line chart of national debt as share of GDP from fiscal years 1940 to 2020 with Reagan, Obama, and Trump's terms highlighted to show how the national debt increased under both Republicans and Democrats.
Data reflects the median of the fiscal year. Fiscal year dates covered July 1 to June 30 from 1940 until 1976, when it was switched to Oct. 1 to Sept. 30.