National Party leader Judith Collins has blamed Covid-19 for the party's resounding defeat. National won 27 per cent of the vote compared with Labour's 49 per cent.
Speaking to Kerre McIvor and Barry Soper on Newstalk ZB this morning, she said a review on what worked and what had not was very important.
The party needed the opportunity to sit back and consider what had happened to the party during the past three years, and particularly the past 12 months.
She said the leadership changes leading up to the election did not help.