Prime Minister rejects criticism of National's supermarket policy

Chris Luxon insists National's controversial grocery policy is in line with the party's principles.

National has joined New Zealand First, in campaigning for a break-up of the two Foodstuffs co-ops - something almost 500 owner-operators have criticised in an open letter this morning.

Labour wants to separate the supermarket chains from their wholesale arms, while the Greens want to establish a state-owned grocery chain. 

Luxon told Mike Hosking National is the party of enterprise, but it's also the party of competition.

LISTEN ABOVE