When Jane Mansbridge’s (1999) article was first submitted, more than 80% of the world’s parliaments featured less than 20% women (IPU 2015). Calculating the parliamentary presence of ethnic and cultural minorities and Indigenous peoples has proved more difficult (Protsyk 2010). This is despite the adoption of two United Nations Declarations, on the Rights of Persons Belonging to National or Ethnic, Religious and Linguistic Minorities (1992) and on the Rights of Indigenous Peoples in 2007. In Aotearoa New Zealand, the representation of women and Māori (the Indigenous peoples) was comparatively better than global averages. In 1996, 29% of parliamentarians were women and 14% were Māori. By 2020, these figures had increased to 48% and 21%, respectively, while in the cabinet, women made up 40% of ministers and Māori accounted for 25%. Reported as the country’s historically most diverse parliament and cabinet (Curtin 2020), it appears that both new (proportional representation) and old (reserved seats for Māori) institutional mechanisms had achieved near proportionality, and a heterogeneity of experiences, potentially enhancing opportunities for deliberation.