Jacqui Dean, the MP at the centre of the scandal that took down the leadership of Judith Collins, said she was "caught up in what was a political power-play".
"It was certainly not my intention for past issues to be thrust into the spotlight as they were," Dean said in a Facebook post.
"I took no pleasure in being caught up in what was a political power-play that took attention away from the important issues of the day," she wrote.
Last week, then-National leader Judith Collins demoted former leader Simon Bridges on the basis of a complaint by Dean, who was set to appear in a press conference discussing the complaint the morning after Bridges was demoted, although the press conference never took place.