In the footsteps of the chief
John Diefenbaker wasn't the only prime minister to declare his ambition to be prime minister at a young age; Brian Mulroney also announced to the world at a young age that he wanted to be prime minister when he grew up.
Mulroney was a great fan of Diefenbaker. As campus delegate from St. Francis Xavier University in Nova Scotia, he attended the 1956 Conservative leadership convention and voted for Diefenbaker. In 1961, Mulroney became a student advisor to the Chief, counselling him on Quebec affairs. He was studying law at Laval by this time, and his colleagues refused to believe that their classmate was actually discussing politics with the Prime Minister of Canada. They dared Mulroney to invite Diefenbaker to speak at Laval. His disbelieving classmates were astonished to see the Prime Minister in law class one day, introduced by his advisor, Brian Mulroney!
Source: Canada's Prime Ministers, 1867 - 1994: Biographies and Anecdotes. [Ottawa]: National Archives of Canada, . 40 p.