The Labour Party's new leader and deputy leader are warning that the incoming National-led Government will face a tough time.
Phil Goff was elected Labour leader and Annette King deputy leader unopposed on Tuesday at the party's first caucus meeting since the election.
Mr Goff says Labour will support National when it is pursuing policies which are good for New Zealand.
However, he says Labour will strongly oppose changes - such as cutting the KiwiSaver benefits - which are bad.
Ms King says National had over-promised and will struggle to deliver on its commitments, particularly given the international financial and economic crisis.
Both say Labour's quick and peaceful transition to a new leadership team means it is ready to hold the new National-led Government to account from day one.