Mark Carney, who has served 31 days as Canada’s prime minister as of April 14, risks becoming the shortest-serving prime minister in history if he loses the upcoming election, potentially reducing his tenure to 45 days. Sir Charles Tupper, Canada’s sixth prime minister, holds the record for the shortest term at 68 days in 1896, having previously been a physician and a key figure in the Confederation movement. Tupper’s political career began in Nova Scotia, where he became premier and advocated for federal union, influencing the creation of Canada in 1867.