Hostilities between Brendan Horan and his former NZ First colleagues have fired up again, with Mr Horan making allegations of bullying behaviour.

Parliament’s Speaker is investigating whether NZ First misused taxpayer funding by paying for software used to seek votes and raise cash for the party.

While he denied he was running away from a fight, NZ First leader Winston Peters left his MPs to defend the party against claims by rogue former MP Brendan Horan.

Prime Minister John Key has declared previous ownership of a racehorse, days after Winston Peters was accused of hiding his interest in a horse.

Justice Minister Judith Collins is back in Parliament today, and is set to face more questions from the Opposition.

NZ First leader Winston Peters is rejecting allegations from a former colleague that he misused party money and failed to declare interests in a successful racehorse.

Parliament’s Speaker says he has had to accept that NZ First MP Denis O’Rourke is not in a relationship with his taxpayer funded employee and housemate.

National has taken a 6 point dive in the latest Roy Morgan poll, below the combined support of Labour and the Greens at 45.5 per cent.

NZ First leader Winston Peters has defended one of his MPs who wrote to a police boss to voice 'concerns' over the transfer of a sergeant she knew.

New Zealand First leader Winston Peters has accused the Green Party of attempting to destabilise the Labour Party over its approach to Labour for a pre-election coalition agreement.

Prime Minister John Key has disputed a suggestion that the issue of absentee foreigners buying houses in New Zealand has always been a bottom line for Winston Peters'.

New Zealand First is doing "far better'' among voters than recent polls would suggest, leader Winston Peters says.

National has fallen two points to 43 per cent in the latest Roy Morgan poll.

Two female New Zealand First employees have received payouts after being "bullied" out of their jobs by MP Andrew Williams.

Claims by a political pundit that Labour's Shane Jones is about to jump waka to another political party is just 'mischief', the MP says.

Labour's support has sunk nearly six points and it is polling only 29.5 per cent in the Herald-DigiPoll survey.

New Zealand First wants to limit foreign ownership of residential property, and ban foreign boats and crews from fishing New Zealand waters.

Prime Minister John Key has hinted his tip-off about NZ First leader Winston Peter's visits to the Dotcom mansion came from blogger Cameron Slater.

Winston Peters said he believes Kim Dotcom is telling the truth in claiming the Prime Minister knew about him well before the day before the raid on his mansion.

New Zealand First would hold the balance of power if the results of the first major political poll of the year were translated to an election result.

Winston Peters' summer went rather well for him and so has his start to the political year.

If Peters does a deal with National after the election - and he will, for reasons that will become obvious - he will want trophies, writes John Roughan.

The PM's about-turn on working with Peters was utterly predictable, writes John Armstrong.

'A few things have changed.' National could work with Winston Peters' NZ First after this year's election, PM John Key has said - reversing his stance.

National's decision to potentially work with Winston Peters and New Zealand First after the next election is not without risk, writes Audrey Young.

'These were ludicrous, frivolous allegations.' Independent MP Brendan Horan is cleared over allegations he took money from the accounts of his late mother.