Leader of the Government in the House of Commons (Canada) position of Government House Leader was formally recognized. In 1968, Prime Minister Pierre Trudeau designated the Government House Leader as President of the Queen's Privy Council for Canada. Under Prime Minister Brian Mulroney, the roles of Government House Leader and President of the Privy Council were separated in 1989. Under Mulroney and his successors, the position of House Leader would often be held by someone who was named a Minister of State without any portfolio responsibilities specified. Since 2003, this Minister of State status has been obscured in all but the most official circumstances by the use of a "Leader
Spouse of the Prime Minister of Canada does not officially play as active a role in Canadian affairs as the royal and viceregal consorts. The prime minister's spouse, however, is still generally regarded as a public figure, frequently accompanying the prime minister on campaign and other public appearances, and often hosting dignitaries at the prime minister's residence. At times, prime ministers' spouses have used their public status to promote charitable causes; Mila Mulroney was a spokesperson for the Canadian Cystic Fibrosis Foundation and other children's charities; Aline Chrétien was an active campaigner for literacy programs; and Laureen Harper was known for her support of animal welfare organizations