Shanks joined the New Zealand National Party in 2001 as a member of the Karori branch .
Was a member of the New Zealand National Party 's executive committee for the Wellington Central electorate until 2004 , when Shanks joined the Ohariu - Belmont branch .
Shanks joined the New Zealand National Party in 2001 as a member of the Karori branch and was a member of the party 's executive committee for the Wellington Central electorate until 2004 , when she joined the Ohariu - Belmont branch .