When Stanfield announced his resignation in 1975, she went to work in the PC Party office helping to coordinate the 1976 Progressive Conservative leadership convention.

LeBreton later worked in the office of Brian Mulroney while he was prime minister, rising to position of Deputy Chief of Staff and Government Appointments Director.

LeBreton is generally considered to be a Red Tory and is progressive on social issues such as abortion rights.

Over time, she warmed to the new party, and later served as one of Stephen Harper's top advisors in the 2006 federal election.

While she received a backlash for her role as the government leader at the time of the misappropriations, she was adamant that an investigation needed to proceed.

[4] As the scandals intensified, LeBreton gave a defiant speech to the Senate in which she said Ottawa was "populated by Liberal elites and their media lickspittles".

"[6] Following her appointment to the Senate, during the 34th Canadian Parliament, she sat on the Standing Committee on Internal Economy, Budgets and Administration.