Minister for Indigenous Australians Ken Wyatt wants a referendum on Indigenous constitutional recognition within three years, but can the Liberal party unite on this issue? Katharine Murphy is joined by Richie Ah Mat, the Cape York Land Council chairman, and Rachel Perkins, managing director of Blackfella Films and a director of non-profit group Uphold & Recognise. They discuss the recent speech by incoming senator Andrew Bragg, an address full of hope for an Indigenous voice to parliament• ‘Will you back us?’: Rachel Perkins on how Turnbull almost cut recognition ‘off at the knees’