List of Canadian prime ministers and American presidents

This is a list and timeline of Canadian prime ministers and American presidents. Canada's prime minister serves as the primary minister of the Crown, chair of the Cabinet, and head of government of Canada, while the British monarch serves as head of state under representation from the governor general. The American president is both the head of government and head of state of the United States, ^[1] chief-executive of the executive branch and the federal government, and is the commander-in-chief of the United States Armed Forces. ^[2] The two positions are uniquely tied by geopolitical and cultural similarities, long-lasting and complex relations, economic ties, and the world's longest international land border. Both nations have historically considered each other their closest partner and ally. ^[3] The longest co-serving prime minister and president were William Lyon Mackenzie King and Franklin D. Roosevelt, who both continuously held power for 9 years, 5 months, and 20 days straight between October 23, 1935 and April 12, 1945. The first pair of concurrently serving prime minister and president was John A. Macdonald and Andrew Johnson, for 1 year, 8 months, and 4 days from July 1, 1867 to March 4, 1869, and the current holders are Mark Carney and Donald Trump, since March 14, 2025.

There has been one pair of father and son that both served as prime minister, being Pierre Trudeau and Justin Trudeau, while two pairs of father and son both served as president, John Adams and John Quincy Adams, and George H. W. Bush and George W. Bush, the latter of which both served post-Canadian Confederation. The Roosevelts share both the longest and second-longest prime minister and president duo, as Theodore Roosevelt also served for 7 years, 5 months, and 18 days alongside Wilfrid Laurier, almost exactly two years fewer than FDR did with Mackenzie King. John A. Macdonald served with a record 7 different presidents (Johnson, Grant, Hayes, Garfield, Arthur, Cleveland, and Harrison), while Grover Cleveland served with 5 different prime ministers (Macdonald, Thompson, Bowell, Tupper, and Laurier).

Three pairs served abreast on two separate occasions. William Lyon Mackenzie King and Calvin Coolidge served concurrently from 1923 to 1926 and again from 1926 to 1929 with Arthur Meighen briefly becoming prime minister between the two stints. Pierre Trudeau and Jimmy Carter served concurrently from 1977 to 1979 and again from 1980 to 1981, due to Joe Clark briefly gaining power from 1979 to 1980. Most recently, Justin Trudeau and Donald Trump served concurrently from 2017 to 2021 and again briefly in 2025, due to Joe Biden gaining power from 2021 to 2025.

Timeline of Canadian prime ministers and American presidents

Canadian Prime Minister	Party	American President	Party	Start	End	Tenure
John A. Macdonald	Liberal-Conservative	Andrew Johnson	National Union Democratic	July 1, 1867	March 4, 1869	612 days
John A. Macdonald	Liberal-Conservative	Ulysses S. Grant	Republican	March 4, 1869	November 5, 1873	1707 days
Vacant		Ulysses S. Grant	Republican	November 5, 1873	November 7, 1873	2 days
Alexander Mackenzie	Liberal	Ulysses S. Grant	Republican	November 7, 1873	March 4, 1877	1213 days
Alexander Mackenzie	Liberal	Rutherford B. Hayes	Republican	March 4, 1877	October 8, 1878	583 days
Vacant		Rutherford B. Hayes	Republican	October 8, 1878	October 17, 1878	9 days
John A. Macdonald	Conservative	Rutherford B. Hayes	Republican	October 17, 1878	March 4, 1881	869 days
John A. Macdonald	Conservative	James A. Garfield	Republican	March 4, 1881	September 19, 1881	199 days
John A. Macdonald	Conservative	Chester A. Arthur	Republican	September 19, 1881	March 4, 1885	1262 days
John A. Macdonald	Conservative	Grover Cleveland	Democratic	March 4, 1885	March 4, 1889	1461 days
John A. Macdonald	Conservative	Benjamin Harrison	Republican	March 4, 1889	June 6, 1891	824 days
Vacant		Benjamin Harrison	Republican	June 6, 1891	June 16, 1891	10 days
John Abbott	Conservative	Benjamin Harrison	Republican	June 16, 1891	November 24, 1892	527 days
Vacant		Benjamin Harrison	Republican	November 24, 1892	December 5, 1892	11 days
John Sparrow David Thompson	Conservative	Benjamin Harrison	Republican	December 5, 1892	March 4, 1893	89 days
John Sparrow David Thompson	Conservative	Grover Cleveland	Democratic	March 4, 1893	December 12, 1894	648 days
Vacant		Grover Cleveland	Democratic	December 12, 1894	December 21, 1894	9 days
Mackenzie Bowell	Conservative	Grover Cleveland	Democratic	December 21, 1894	April 27, 1896	493 days
Vacant		Grover Cleveland	Democratic	April 27, 1896	May 1, 1896	4 days
Charles Tupper	Conservative	Grover Cleveland	Democratic	May 1, 1896	July 8, 1896	68 days
Vacant		Grover Cleveland	Democratic	July 8, 1896	July 11, 1896	3 days
Wilfrid Laurier	Liberal	Grover Cleveland	Democratic	July 11, 1896	March 4, 1897	236 days
Wilfrid Laurier	Liberal	William McKinley	Republican	March 4, 1897	September 14, 1901	1654 days
Wilfrid Laurier	Liberal	Theodore Roosevelt	Republican	September 14, 1901	March 4, 1909	2728 days
Wilfrid Laurier	Liberal	William Howard Taft	Republican	March 4, 1909	October 6, 1911	946 days
Vacant		William Howard Taft	Republican	October 6, 1911	October 10, 1911	4 days
Robert Borden	Conservative	William Howard Taft	Republican	October 10, 1911	March 4, 1913	511 days
Robert Borden	Conservative Unionist	Woodrow Wilson	Democratic	March 4, 1913	July 10, 1920	2685 days
Arthur Meighen	Unionist	Woodrow Wilson	Democratic	July 10, 1920	March 4, 1921	237 days
Arthur Meighen	Unionist	Warren G. Harding	Republican	March 4, 1921	December 29, 1921	300 days
William Lyon Mackenzie King	Liberal	Warren G. Harding	Republican	December 29, 1921	August 2, 1923	581 days
William Lyon Mackenzie King	Liberal	Calvin Coolidge	Republican	August 2, 1923	June 28, 1926	1061 days (first tenure; 1952 days in total)
Vacant		Calvin Coolidge	Republican	June 28, 1926	June 29, 1926	1 day
Arthur Meighen	Conservative	Calvin Coolidge	Republican	June 29, 1926	September 25, 1926	88 days
William Lyon Mackenzie King	Liberal	Calvin Coolidge	Republican	September 25, 1926	March 4, 1929	891 days (second tenure; 1952 days in total)
William Lyon Mackenzie King	Liberal	Calvin Coolidge	Republican	August 2, 1923 September 25, 1926	June 28, 1926 March 4, 1929	1952 days in total 1. 1061 days 2. 891 days
William Lyon Mackenzie King	Liberal	Herbert Hoover	Republican	March 4, 1929	August 7, 1930	521 days
R. B. Bennett	Conservative	Herbert Hoover	Republican	August 7, 1930	March 4, 1933	940 days
R. B. Bennett	Conservative	Franklin D. Roosevelt	Democratic	March 4, 1933	October 23, 1935	963 days
William Lyon Mackenzie King	Liberal	Franklin D. Roosevelt	Democratic	October 23, 1935	April 12, 1945	3459 days
William Lyon Mackenzie King	Liberal	Harry S. Truman	Democratic	April 12, 1945	November 15, 1948	1313 days
Louis St. Laurent	Liberal	Harry S. Truman	Democratic	November 15, 1948	January 20, 1953	1527 days
Louis St. Laurent	Liberal	Dwight D. Eisenhower	Republican	January 20, 1953	June 21, 1957	1613 days
John Diefenbaker	Progressive Conservative	Dwight D. Eisenhower	Republican	June 21, 1957	January 20, 1961	1309 days
John Diefenbaker	Progressive Conservative	John F. Kennedy	Democratic	January 20, 1961	April 22, 1963	822 days
Lester B. Pearson	Liberal	John F. Kennedy	Democratic	April 22, 1963	November 22, 1963	214 days
Lester B. Pearson	Liberal	Lyndon B. Johnson	Democratic	November 22, 1963	April 20, 1968	1611 days
Pierre Trudeau	Liberal	Lyndon B. Johnson	Democratic	April 20, 1968	January 20, 1969	275 days
Pierre Trudeau	Liberal	Richard Nixon	Republican	January 20, 1969	August 9, 1974	2027 days
Pierre Trudeau	Liberal	Gerald Ford	Republican	August 9, 1974	January 20, 1977	895 days
Pierre Trudeau	Liberal	Jimmy Carter	Democratic	January 20, 1977	June 4, 1979	865 days (first tenure; 1188 days in total)
Joe Clark	Progressive Conservative	Jimmy Carter	Democratic	June 4, 1979	March 3, 1980	273 days
Pierre Trudeau	Liberal	Jimmy Carter	Democratic	March 3, 1980	January 20, 1981	323 days (second tenure; 1188 days in total)
Pierre Trudeau	Liberal	Jimmy Carter	Democratic	January 20, 1977 March 3, 1980	June 4, 1979 January 20, 1981	1188 days in total 1. 865 days 2. 323 days
Pierre Trudeau	Liberal	Ronald Reagan	Republican	January 20, 1981	June 30, 1984	1257 days
John Turner	Liberal	Ronald Reagan	Republican	June 30, 1984	September 17, 1984	79 days
Brian Mulroney	Progressive Conservative	Ronald Reagan	Republican	September 17, 1984	January 20, 1989	1586 days
Brian Mulroney	Progressive Conservative	George H. W. Bush	Republican	January 20, 1989	January 20, 1993	1461 days
Brian Mulroney	Progressive Conservative	Bill Clinton	Democratic	January 20, 1993	June 25, 1993	156 days
Kim Campbell	Progressive Conservative	Bill Clinton	Democratic	June 25, 1993	November 4, 1993	132 days
Jean Chrétien	Liberal	Bill Clinton	Democratic	November 4, 1993	January 20, 2001	2634 days
Jean Chrétien	Liberal	George W. Bush	Republican	January 20, 2001	December 12, 2003	1056 days
Paul Martin	Liberal	George W. Bush	Republican	December 12, 2003	February 6, 2006	787 days
Stephen Harper	Conservative	George W. Bush	Republican	February 6, 2006	January 20, 2009	1079 days
Stephen Harper	Conservative	Barack Obama	Democratic	January 20, 2009	November 4, 2015	2479 days
Justin Trudeau	Liberal	Barack Obama	Democratic	November 4, 2015	January 20, 2017	443 days
Justin Trudeau	Liberal	Donald Trump	Republican	January 20, 2017	January 20, 2021	1461 days (first tenure; 1514 days in total)
Justin Trudeau	Liberal	Joe Biden	Democratic	January 20, 2021	January 20, 2025	1461 days
Justin Trudeau	Liberal	Donald Trump	Republican	January 20, 2025	March 14, 2025	53 days (second tenure; 1514 days in total)
Justin Trudeau	Liberal	Donald Trump	Republican	January 20, 2017 January 20, 2025	January 20, 2021 March 14, 2025	1514 days in total 1. 1461 days 2. 53 days
Mark Carney	Liberal	Donald Trump	Republican	March 14, 2025	Present day	252 days (as of 2025-11-21)

See also

• Canada–United States relations
• Canada–United States political executive relations
• List of prime ministers of Canada
• List of presidents of the United States

References

1. "Wayback Machine" (PDF). www2.parl.gc.ca. Archived from the original (PDF) on 2009-12-29. Retrieved 2025-07-09.
2. "Presidents, vice presidents, and first ladies | USAGov". www.usa.gov. Retrieved 2025-07-09.
3. Canada, Global Affairs (2019-03-28). "Canada-United States relations". GAC. Retrieved 2025-07-09.