Former National MP Matt King is set to join the protests outside his old workplace on Saturday, saying he was disappointed with his former colleagues for dismissing the views of the protesters out of hand.
King, who was Northland MP from 2017 to 2020, now heads a group representing military and Police personnel who are opposed to the vaccine mandates in those workforces.
He said he had been "hugely disappointed" by the dismissive responses of politicians to the protests, including by National's leader Christopher Luxon.
"I think that they have shown a real lack of respect for the protesters and their position. That's my biggest disappointment. If they had listened and given an ear or even just shown some interest they might not have had this issue."
National has distanced itself from King - a National Party spokeswoman issued a statement saying "Matt King is no longer an MP for the National Party.