More than half of every MP ever elected under the One Nation banner — 28 of 51 — has either resigned midterm or been expelled from the party. Guardian Australia's analysis of the full candidate history reveals a pattern so consistent it functions less as scandal and more as structural feature: the party is engineered for recruitment, not retention. The template was set in 1998 when One Nation won 11 seats in the Queensland parliament. All 11 members either quit to sit as independents or left parliament entirely. Pauline Hanson herself quit the party she founded amid factional infighting, only to rejoin later. The organisation splintered not because of external pressure but because its internal architecture — highly centralised around Hanson and her chief of staff James Ashby — creates a centrifugal force that ejects anyone who develops independent standing. The 2016 federal resurgence repeated the pattern at higher stakes. Four senators elected at the double dissolution, and the subsequent departures read like a political soap opera: Rod Culleton quit then was disqualified; Malcolm Roberts was found to be a dual citizen; Fraser Anning replaced Roberts and quit on his literal first day in parliament; Brian Burston defected to Clive Palmer's United Australia Party, culminating in a physical altercation with Ashby inside Parliament House. High-profile state recruits fared no better. Mark Latham and Tania Mihailuk, both elected to the NSW parliament, have since departed. The party does produce some durable loyalists — Rosa Lee Long served multiple Queensland terms in the 2000s, and Malcolm Roberts has been Hanson's right-hand since 2016, winning re-election in 2025 — but these are exceptions that prove the rule. Loyalty flows to Hanson personally, not to an institutional structure that could survive her. The current moment is the most consequential the party has faced. One Nation won 6% of the national vote at the 2025 federal election and now polls above 30% in some surveys — territory that could make it the official federal opposition or even a minority government partner. It holds six federal seats, and David Farley became the first person to win a lower house seat as a One Nation candidate at the Farrer byelection in May 2025, joined by Nationals defector Barnaby Joyce. The core tension is mathematical. A party built around one leader's personal authority, with a 55% attrition rate among its elected members, is now scaling toward a parliamentary presence that demands institutional depth — whips, shadow portfolios, policy machinery, factional management. Every previous growth phase triggered the same centrifugal collapse. The question is whether polling at 30% produces different organisational physics than polling at 6%, or whether the same structural flaw simply detonates at a larger scale. The historical parallel is less Reform UK (which built institutional scaffolding before scaling) and more the Italian Five Star Movement, which surged on anti-establishment anger, won government, and then fractured precisely because its internal structures couldn't bear the weight of actual power. One Nation's 55% attrition rate is not a bug that better management would fix — it is the predictable output of a party designed as a vehicle for one person's grievances rather than a governing institution.
