The National Party has been gripped by another round of discontent and speculation.

OPINION: The PM's National Party was in disarray this week – is it time for him to go?

OPINION: Christopher Luxon has allowed coalition conflict to spill into public.

NZ Herald's Katie Bradford says if Luxon is getting rolled, 'it needs to be this week'.

OPINION: The PM has called a caucus meeting to discuss his leadership on Wednesday.