Debt by President

U.S. president	Party	Term years	Start debt/GDP	End debt/GDP	Increase debt ($T)	Increase debt/GDP (in percentage points)
Roosevelt/Truman	D	1945–1949	117.5%	93.1%	-0.01	-24.4%
Harry Truman	D	1949–1953	93.1%	71.4%	0.01	-21.7%
Dwight Eisenhower	R	1953–1957	71.4%	60.4%	0.01	-11.0%
Dwight Eisenhower	R	1957–1961	60.4%	55.2%	0.02	-5.2%
Kennedy/Johnson	D	1961–1965	55.2%	46.9%	0.03	-8.3%
Lyndon Johnson	D	1965–1969	46.9%	38.6%	0.04	-8.3%
Richard Nixon	R	1969–1973	38.6%	35.6%	0.10	-3.0%
Nixon/Ford	R	1973–1977	35.6%	35.8%	0.24	+0.2%
Jimmy Carter	D	1977–1981	35.8%	32.5%	0.29	-3.3%
Ronald Reagan	R	1981–1985	32.5%	43.8%	0.82	+11.3%
Ronald Reagan	R	1985–1989	43.8%	53.1%	1.05	+9.3%
George H. W. Bush	R	1989–1993	53.1%	66.1%	1.48	+13.0%
Bill Clinton	D	1993–1997	66.1%	65.4%	1.02	-0.7%
Bill Clinton	D	1997–2001	65.4%	56.4%	0.40	-9.0%
George W. Bush	R	2001–2005	56.4%	63.5%	2.14	+7.1%
George W. Bush	R	2005–2009	63.5%	84.2%	3.97	+20.7%
Barack Obama	D	2009–	84.2%	93.2% (2010)	1.65 (2010)	+9.0% (2010)