Joanna's Role in Parliament

Joanna was appointed a Goverment Whip by the PM in 2001. The duties of this position include organising other Liberal members to ensure they vote as directed. As such the Whip, more so than any regular backbencher, would find it nigh impossible to cross the floor and vote contrary to the Government line on any isssue. Joanna has never crossed the floor even on issues known to be close to her heart.
The party system has it's advantages but falls down when members feel strongly on an issue but are obliged to toe the party line. There is certainly an agument for at least a few Members of Parliament who are prepared to examine each issue on its merits and vote according to their considered assessment.