Gina: the billionaire who wants to make Australia great

Gina Rinehart is Australia’s richest person – and as her wealth continues to rise, so does her power and influence. But what does she want? As the federal election approaches, Guardian Australia’s new series explores the impact she could have on Australian politics. Senior correspondent Sarah Martin investigates decades of family history and infighting to make sense of how she became a mining billionaire, legal warrior and Trump admirer – and what she might do next.