Labour Party leader David Shearer should be paying close attention to the current political landscape in Australia and the woes besetting his Labor counterpart, Australian Prime Minister Julia Gillard.
Ms Gillard's arch rival and predecessor as prime minister, Kevin Rudd, has launched a push to reclaim the post he lost in 2010, resigning from his Minister for Foreign Affairs position and prompting Ms Gillard to call for today's leadership ballot.
The vote will be the culmination of a long period of destabilising in-fighting among the ranks of the Australian Labor Party.
No one is suggesting the same sort of rift exists in the New Zealand Labour Party.