Labour leader David Shearer says it's not his place to interfere in the Ports of Auckland dispute.
Six weeks of negotiations have failed to secure a settlement between management and Maritime Union members.
Mr Shearer is facing criticism for not entering the debate, but says the two sides need to work it out for themselves.
"I don't think they're too far apart," he says. "I'd like to think they can come together.
"If I thought my comments would make a difference to the resolution I would, but I think that's something that'll happen between the two parties, not with my involvement."
The Maritime Union issued Ports of Auckland with a strike notice for January 31.
3 News / RadioLIVE