Prime Minister Joe Clark listens intently as he is questionned during his first press conference as head of government in Ottawa on this June 5, 1979 photo. Margaret Thatcher told Clark to rely on his “own instincts” the day after the electoral triumph that made him Canada's youngest prime minister, British archival records reveal. In a congratulatory phone call, Britain's Iron Lady confided to Clark that the keys to her initial success were forming a “well-balanced government” and making decisions only when she was ready. THE CANADIAN PRESS/Fred Chartrand