Labor Defends Secret Harbour Seat Amid One Nation Surge

Voters in the Western Australian state seat of Secret Harbour will cast ballots on Saturday, August 30, 2026, in a by-election triggered by the July resignation of senior government minister Paul Papalia. While the beach-side electorate has historically been a Labor stronghold, the governing party faces a volatile three-way contest against the Liberal Party and a surging One Nation.

Recent polling indicates Labor leads with 33% of the primary vote, while the Liberals and One Nation are neck-and-neck at 21%. The race has centered on economic anxiety, specifically cost-of-living pressures, housing shortages, and local infrastructure deficits like the missing Karnup train station. Labor candidate Georgia Tree is campaigning on government delivery, while Liberal candidate Ryan Robertson and One Nation candidate Luke Herdegen are targeting voters experiencing mortgage and rent stress.

Premier Roger Cook has acknowledged the contest is a tough fight for his team, though he noted that the result does not threaten the government's overall majority in the lower house. The outcome is viewed as a critical litmus test for the 2028 federal election and the upcoming November state election in Victoria. Additionally, the result may impact federal Liberal MP Andrew Hastie, as One Nation is targeting his marginal seat of Canning, which encompasses the Secret Harbour electorate.