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
Brian Mulroney he became prime minister in June 1979. By late 1982, Joe Clark's leadership of the Progressive Conservatives was being questioned in many party circles and among many Tory members of Parliament, despite his solid national lead over Prime Minister Pierre Trudeau in opinion polls, which stretched to 19 percent in summer 1982. Mulroney, while publicly endorsing Clark at a press conference in 1982, organized behind the scenes to defeat him at the party's leadership review. Clark's key Quebec organizer Rodrigue Pageau was in fact a double agent, working for Mulroney, undermining Clark's support. When Clark received an endorsement by only