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 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 151 days (as of 2025-08-12)

See also

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.