Caroline Mulroney 12 years until 2005 when she returned to Canada, worked in financial services and became involved in charitable work. She also served on the board of directors of the Windsor–Detroit Bridge Authority. Mulroney is the only daughter and eldest child of the 18th Prime Minister of Canada, Brian Mulroney, and his wife Mila Mulroney. She is also a naturalized citizen of the United States. Mulroney is the eldest of four children and only daughter of former Prime Minister of Canada Brian Mulroney and his wife, Mila. One of her younger brothers is CTV morning host Ben Mulroney. Her father won
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