Career
Prior to being mayor in 1998–2010, she served nine years as a city councillor. She is currently a councillor on the
Brash was first elected as a Northern Ward councillor in 1983 and held that role until 1989. She was elected in 1995 for another three-year term.
Brash last contested the mayoralty in October 2007 against four other candidates.
She received 6101 votes, more than twice as many as the next candidate. She retired from the mayoralty at the 2010 election.
She endorsed the mayoral campaign of councillor Nick Leggett, who was elected in October 2010 as her successor. She campaigned for the construction of the Transmission Gully Motorway.
Brash was the Porirua representative on the Wellington Regional Transport Committee when it was formed in 2008.
In October 2010, she was elected to the for the Porirua-Tawa constituency. Former Porirua Mayor John Burke, who in 2007 came second in the constituency, which elects two councillors, came third in 2010. He was thus displaced by Brash and failed to be re-elected.
At the close of her mayoralty, she successfully stood for election to the Porirua Community Trust.
She is a supporter of the New Zealand Flag.com Trust, preferring a silver fern as the symbol on the New Zealand flag over the current design, which is too close to the Australian flag for her.