Labour's caucus is looking to the future... as it licks its wounds in the Wairarapa today

Its MPs have gathered for their annual caucus retreat today, where they're expected to be dissecting the disastrous election loss.

Leader Chris Hipkins addressed the caucus ahead of their closed door session this morning, and told MPs the party must rebuild.

He says Labour has to make sure its holding the Government to account and Labour's offering positive alternatives to what they're proposing, while speaking to its own values.