National and Labour MPs are starting to arrive at Parliament for their first post-election debrief

For National, it will be a chance to hear from Leader Christopher Luxon -- who's due to sit down this afternoon to start mapping out coalition talks.

For Labour, it will be a more sombre affair -- an opportunity to farewell outgoing MPs like Canterbury-based list MP Dan Rosewarne.

Rosewarne says for him, the election result will become real when his Koru Club card is declined -- he's going to have to move from champagne to lemonade.

Deputy Leader Kelvin Davis says Labour will also begin the process of regrouping, rebuilding the party and moving on.