Rarely has a party official been put on notice as publicly and definitively as Labour Party president Nigel Haworth was by Prime Minister Jacinda Ardern on Monday.

At the centre of Ardern's anger is one big question: did Haworth mislead Ardern when she was given an assurance that there was nothing of a sexual nature among the multiple complaints against a staffer.

It is little wonder she suspects she may have been misled.

Jacinda Ardern on alleged sexual assault by a Labour staff member. Video / Mark Mitchell

The Spinoff has published a detailed outline of a woman's allegations of a sexual assault in early 2018 by the staffer, and that woman's frustration at