Complex sentence: Twyford announced that he would not seek the seat on April 21, on the back of media stories that the Labour Party were unwilling to allow Twyford's list place to be taken by defeated Auckland Central MP Judith Tizard.
Split into simpler sentences: Twyford announced that he would not seek the seat on 21 April. This followed media reports that the Labour Party was unwilling to allow Twyford's list place to be taken by defeated Auckland Central MP Judith Tizard.