Prime Minister of Canada has granted former prime ministers an augmentation of honour on the personal coat of arms of those who pursued them. The heraldic badge, referred to by the CHA as the "mark of the Prime Ministership of Canada", consists of four red maple leaves joined at the stem on a white field ("Argent four maple leaves conjoined in cross at the stem Gules"); the augmentation has, so far, been granted either as a canton sinister or centred in the chief. To date, former prime ministers Joe Clark, Pierre Trudeau, John Turner, Brian Mulroney, Kim Campbell and Jean Chrétien were granted arms
Caroline Mulroney until August 2, 2017, when she took a leave of absence upon announcing her candidacy. On July 30, 2014, Minister of Transport Lisa Raitt appointed Mulroney and three other individuals, including Mark R. McQueen, who was an employer of Mulroney (under the name Lapham) at Wellington Financial and also was a former employee of Brian Mulroney's Prime Minister's office, to the Windsor–Detroit Bridge Authority, a body to oversee a second bridge across the Detroit River that separates Windsor, Ontario, from Detroit, Michigan. The authority will oversee the new bridge's $4 billion construction, and the management of the bridge, once it