Rahui Papa gave an interview about the Kingitanga movement and was questioned about the Māori King’s politically-focussed kōrero recently.
Well, the Kīngitanga, by its very nature, is political. It was set up as a political response to the land sales in the 1800s. By 1858, the relationship with the Crown had soured so much that Māoridom had seen a need to come together in a kotahitanga — and to frame a response. And one of those responses was the formation of the Kīngitanga.
Te Ara: The Encyclopedia of New Zealand has a great article on the Kingitanga movement.
An example of a response to something that was happening at the time for Māori. The movement continues today and is a voice that still speaks today.