Brad Robertson

The provided news articles focus on the Farrer byelection and its outcome, specifically the victory of One Nation candidate David Farley. The articles detail the electoral performance of Farley, independent candidate Michelle Milthorpe, and the strategic decisions of the Liberal and National parties to preference Farley. There is no mention of an individual named Brad Robertson within these snippets. Therefore, based on the given information, Brad Robertson's background, relevance, or any recent events concerning him cannot be summarized.