Australia’s most unsuccessful party loses another leader

Australia’s Most Unsuccessful Party Loses Another Leader

The Canberra Liberals, who have remained in opposition for twenty-four years, lost another leader as Leanne Castley announced her resignation following a turbulent year in leadership. Last year, the Labor party secured its seventh consecutive election victory in the ACT Assembly, with the Liberals out of power since former Chief Minister and Senator Gary Humphries was defeated by Jon Stanhope in the 2001 territory polls.

On Monday, Canberra Liberals leader Leanne Castley and her deputy Jeremy Hanson declared they would step down to allow for a new leadership team. Mark Parton, a former radio announcer and current ACT Speaker, is expected to take over the leadership role.

“To give the Canberra Liberals the best possible chance of success in the 2028 election, we have made the decision to step down from leadership,” the pair said in a joint statement.

“A vote will soon be held to elect a new leadership team, and neither of us will be contesting any leadership positions. We extend our full support and best wishes to those who will take on these important roles.”

Background

Author's summary: The Canberra Liberals face ongoing leadership challenges after 24 years in opposition, prompting Castley and Hanson to resign and pave the way for new leadership ahead of the 2028 election.

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The Nightly The Nightly — 2025-11-10