Complex sentence: Henare remained in Parliament until the 1938 elections, when he was defeated by Paraire Karaka Paikea of the Labour Party who was affiliated with the Labour-aligned Ratana movement, whose rise Henare had opposed.
Split into simpler sentences: Henare remained in Parliament until the 1938 elections, when he was defeated by Paraire Karaka Paikea of the Labour Party. Paikea was affiliated with the Labour-aligned Ratana movement, whose rise Henare had opposed.