Bill English is staying silent on whether he wants to be New Zealand's next Prime Minister and Judith Collins has not ruled out a bid to replace Key.

Leader of the Opposition Andrew Little has paid tribute to outgoing Prime Minister John Key, saying he has "served New Zealand well".

John Key's shock resignation has resonated around the globe with media and leaders from Australia and as far afield as China, the United States and Russia and France broadcasting the news online.

A terrible feeling of deja vu appears to have come over Prime Minister John Key. Here we sit, over a cuppa in a cafe in the centre of the Epsom electorate.

Key led his party to win the election in November 2008 after nine years of a Labour-run Government.

EXCLUSIVE: Hayley Holt has confirmed she will stand for the Green Party at next year's general election.

Even a close win in Mt Roskill could have been bad new for Andrew Little but the victory will transform the spirits of the party.

A former Labour member spurned for being "right wing" by Labour leader Andrew Little has signed up with National.

National's candidate for Mt Roskill is a former scientist and broadcaster who says Labour are getting "desperate" ahead of Saturday's byelection.

The spying watchdog has urged Parliament to "tighten up" the warranting regime for New Zealand's intelligence agencies.

The Govt is making an announcement on the long-stalled changes to the Resource Management Act this afternoon.

Property and farming rich listers are among those who have made big donations to National over the past year.

A major inquiry into euthanasia is taking place, but the Govt has already concluded it will not lead to any changes in New Zealand.

The Government will buy up to three more motels and construct modular housing as part of a new $300 million investment in emergency housing.

The Government has announced a major policy on emergency housing this afternoon.

Former National Party president Michelle Boag has rapped a self-adapted version of 90's hit Gangsta's Paradise during a party fundraiser in Auckland last night.

COMMENT: Key and McCully forged their successful political partnership around dealings the United States and it is about to be harnessed again.

Who would turn their noses up at giving the public more electoral choices in New Zealand politics? Most politicos would, judging by

National Party list MP Jono Naylor says he will leave Parliament after just one term.

Are you angry about the widening gap between rich and poor? Or are you sceptical about the stats?

Who's winning the "class struggle" between business and workers?

Former MPs and their spouses racked up $703,000 on taxpayer-funded travel in the past year, including nearly $25,000 by some couples.

The Government appears certain to miss its target of cutting reoffending in New Zealand by next year.

Although no leading politician is likely to claim that "election is rigged", there are numerous problems with democracy and elections that need debating.

The knives are out in the National Party after the centre-right's disastrous result at last weekend's local elections in Auckland.

COMMENT: NZ First leader has been vocal about parents' strain on pension.

The Government's state housing agency is set to run out of money by February, ministers have been warned.

COMMENT: The Prime Minister has sounded the warning for his three-yearly check of the best-before dates of ministers.

The mother of the first person to get approval to use medicinal cannabis in New Zealand has made an emotional plea to Parliament to make it easier for others to get access to the drug legally.

Former National Party leader Don Brash says a new anti-separatist campaign may end up donating to one of his old enemies, New Zealand First leader Winston Peters.