One Nation is targeting a WA seat in Labor heartland. It could be a defining moment for Australian politics | Narelle Miragliotta for the Conversation

The Secret Harbour byelection has the potential for an electoral upset, given the many characteristics conducive to a One Nation win

• Get our https://www.theguardian.com/email-newsletters?CMP=cvau_sfl">breaking news email, https://app.adjust.com/w4u7jx3">free app or https://www.theguardian.com/australia-news/series/full-story?CMP=cvau_sfl">daily news podcast

Where once a byelection for a state seat would have attracted little national attention, the remaking of the Australian political landscape in recent months has given such contests greater significance.

The next such byelection is on 29 August in the Western Australian state seat of Secret Harbour, https://www.abc.net.au/news/2026-07-06/wa-minister-paul-papalia-resignation-from-politics/106785902">triggered by the resignation of the Labor government minister Paul Papalia.