A byelection for the Western Australian seat of Secret Harbour is gaining momentum after a major political party decides not to contest the seat. The articles say the electorate was created in 2023 as a result of a redistribution of electoral boundaries. Secret Harbour replaces the former seat of Warnbro, meaning the byelection contests a newly established electorate rather than the continuation of the previous seat. While the coverage focuses on the decision by the major party not to run, it also frames the byelection as a test of support in the area under the new boundaries. With at least one major party absent from the contest, the race is expected to attract heightened attention from other parties and candidates seeking to take advantage of the changed field. Across the reporting, the key shared context is that the seat’s creation in 2023 and the replacement of Warnbro set the stage for the byelection, and that the major party’s non-participation is a central development in how the campaign is taking shape.