Claire Trevett wraps the week in which Bridges delivered an unusual pledge, Grant Robertson's price went up, and hunts down the reasons why three MPs did not cast votes on abortion reform with an unexpected answer.

Monday: Simon Bridges' underpants pledge

National Party leader Simon Bridges set the week off with something of a bang, by announcing if construction started on light rail to Auckland airport before the 2020 election he would "run down Queen Street or Dominion Road with my underpants".

This immediately raised memories of former Green Party MP Keith Locke doing just that down Broadway in Newmarket