Brown is a former member of the
Canadian Alliance and was nominated as its candidate for Newmarket—Aurora in advance of the
2004 federal election. When the party merged with the
Progressive Conservative Party of Canada, however, Brown lost the Conservative nomination to
Belinda Stronach, who went on to defeat Liberal candidate
Martha Hall Findlay. Stronach later crossed the floor to the
Liberal Party. Brown was the Conservative nominee in the
2006 federal election, where Stronach defeated her by 4,800 votes.
Member of Parliament (2008–2015) In the
2008 election, Brown was the riding's Conservative candidate once again, and this time she won the seat by defeating the new Liberal candidate, Tim Jones, by 6,623 votes. Stronach did not seek re-election and retired from politics. In January 2011, Brown was appointed to the Red Tape Reduction Commission by Prime Minister
Stephen Harper. Harper also appointed her Parliamentary Secretary to the Minister of International Cooperation. In the
2011 election, Brown resumed her role as Conservative party candidate for the riding. She won a landslide victory over the other five candidates with 54.33% of votes in her riding, defeating the liberal candidate
Kyle Peterson by 17,724 votes. Following her re-election on 2 May 2011, Brown was re-appointed Parliamentary Secretary to the Minister of International Cooperation by Stephen Harper. Brown sat on the Standing Committee on Foreign Affairs and International Development and she was a member of several Parliamentary Associations, Bilateral Associations, and Interparliamentary Groups. In the
2015 election, Brown was defeated by Kyle Peterson by a margin of 1,459 votes.
2019 federal election In October 2017, Brown announced that she would be seeking the Conservative nomination for Newmarket—Aurora in an attempt to regain her seat in the
43rd Canadian federal election. She was acclaimed as the candidate in March 2018. She subsequently finished second to the Liberal candidate,
Tony Van Bynen. ==Community involvement==