KEY POINTS:
The Labour Party's depleted ranks of MPs will meet today to dissect the failed election campaign.
Leader Phil Goff said the caucus would devote time to a post-mortem, the first time it has done so as a group.
Mr Goff said they would assess "where we ceased to connect with the electorate".
"What were the things that people expected of us that we didn't realise? What were the perceptions about us that rightly or wrongly damaged our standing with the electorate so that many of our people stayed home and some switched their vote?"
Labour has 43 MPs after winning 33.99 per cent of the vote - down from 50 seats and 41.1 per cent in 2005.
It is likely outgoing party president Mike Williams will front the MPs. He usually attends caucus, but could not be reached for comment yesterday.
Mr Williams has said he will resign after a campaign where he was criticised for a dirt-digging expedition to Melbourne that yielded little about National leader John Key.
His likely replacement is Engineering, Printing and Manufacturing Union president Andrew Little, who has no clear challenger, is keen for the job, has been endorsed by Mr Williams and has the support of his own union and probably others.
Labour general secretary Mike Smith said he had not received a formal resignation from Mr Williams, although it is likely to come when the party's ruling council meets on Saturday in Auckland.
Mr Smith said he would then call for nominations from the party's constituent organisations such as its affiliate unions, and if there was another nominee, run a postal ballot early in the New Year.