[2] Wellington has held the balance of power in the legislature twice in his career, and both times saw him give support to Labor-led minority governments.
After some deliberation however, Wellington chose to back Labor on matters of supply and confidence, although he would withdraw that support in the event of "any evidence of gross fraud, misappropriation or illegal activities.
Wellington held the balance of power for only a few months, until One Nation MP Charles Rappolt resigned from Parliament.
At the 2006 state election, he was able to easily see off National Party challenger Steve Morrison in order to secure a fourth term.
[8] In the 2015 state election, the Liberal National government suffered a shock defeat, losing its previously overwhelming majority.
His terms were similar to the ones he laid down 17 years earlier; he stated he would withdraw his support if there was illegal or corrupt activity.