New Zealand First is being told it needs to turn back the clock if it has any hope of a comeback.

Tracey Martin has left after 11 years in Parliament, saying the party struggles with women in leadership, and no longer reflects her values.

The former Minister for Children and Internal Affairs told Kerre McIvor, in its prime, party members had a stronger voice.

She says the public assumed Winston Peters made all the decisions, but it wasn't like that until constitutional changes in 2018.

The party's other female MP, Jenny Marcroft, has also resigned.

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