She was elected a vice-president of the People's National Party in 2006 along with Fenton Ferguson, Derrick Kellier, and Peter Phillips, beating out Sharon Hay-Webster, Louis Moyston, and Kern Spencer.
[2] She moved from local to national politics in January 2012 with her appointment as Deputy President of the Senate of Jamaica after Portia Simpson Miller came to power in the December 2011 general election.
[4] In May 2013, Brown-Burke tweeted denunciations of Television Jamaica's All Angles and CVM TV's Direct for respectively inviting JLP leader Andrew Holness and opposition spokesman on finance and planning Audley Shaw as guests, without including PNP members for balance.
[5] She was criticised for her use of the minced oath "What the F", and apologised for her language and deleted the tweet while defending the views she had expressed.
She renounced U.S. citizenship in January 2012 after she was appointed to the Senate, and received her Certificate of Loss of Nationality one month later.