The ex-prostitute who dug dirt for Whale Oil blogger Cameron Slater offered up personal information about a top businessman and other high-profile public figures.

Government figures continued to come under pressure over Dirty Politics allegations yesterday, with Justice Minister Judith Collins facing calls for her resignation.

Voters comparing social policies at this election have a clear choice: "Unrelenting focus on work" with National, or a softer line if Labour wins.

The National Party will turn its back on glitzy SkyCity to launch its election campaign at the Manukau Events Centre.

National began its fightback yesterday with a push to convince people the way Nicky Hager got his source material was dirtier than anything the Govt has done.

National has lost some support, according to two new polls released tonight.

Internet mogul Kim Dotcom has denied another accusation by Cameron Slater that he was responsible for hacking Slater's blog website earlier this year.

The Labour Party has called on Prime Minister John Key to publicly name the National staff member the party admitted infiltrated Labour's website server in 2011.

With so many allegations of "dirty politics" flying back and forth, it feels like the election campaign has been going for weeks and voting day cannot be far away.

The tirade of insults, invective and scorn directed at Nicky Hager must rank as one of the most sustained efforts by National.

A musician who wrote a satirical song about Prime Minister John Key has been threatened with prosecution if he sells the track on iTunes.

You could take your pick of Muldoon tea towels. One had "Not just a pretty face" printed under his portrait; the other "It's nice to have a man about the House".

So what if there is material that invites suspicion that Cameron Slater called in a favour to have a prisoner transferred? Who really cares, asks Toby Manhire.

The fall-out from Nicky Hager's new book deepened today with threats of legal action and calls for inquiries into its revelations.

Nicky Hager's new book, which claims John Key had a hand in releasing a SIS document shows Mr Key is "not fit to be PM", former Labour Leader Phil Goff says.

Hone Harawira sees the Internet Mana alliance enduring beyond the election because he and Laila Harre are synchronizing so well.

The Electoral Commission last night confirmed it had banned TV and radio broadcasts of Wellington bluesman Darren "Guitar" Watson's musical attack on the PM.

Epsom election candidates faced off at a public debate last night, with one promising to name a convicted sex offender with name suppression under parliamentary privilege.

An education-themed political meeting threatened to boil over as teachers took aim at Education Minister Hekia Parata and unloaded their long list of complaints about their schools, funding and heavy workload.

Auckland will get nine new schools after the Govt announced a $350m funding boost in an effort to get ahead of the city's surging population.

'Do you want to leave now?' asked the host of last night's Helensville debate of Prime Minister John Key - who came closest to being kicked out.

A further 3500 young people on welfare could have their spending tightly controlled by an adult supervisor if National is re-elected.

The Internet Party is seeking legal advice after Prime Minister John Key linked a video of an effigy of himself being burned by jeering youths with the party.

Colin Craig must be tougher than he looks. His revelation that the Chinese firm owning the Crafar farms has applied to buy another pastoral gem was fairly brutal retaliation for National's refusal to give him an electorate.

'Are you Red-dee for a Rev-Oh - Loo- Shin? Are you Red-dee to take down the Government? Are you Red-dee to extradite John Key?"

Widespread damage to election hoardings has been described as "pretty disappointing" but "part of the election campaign process" by the Prime Minister.

SkyCity Entertainment is tidying up its corporate image, now it has hundreds of extra poker machines firmly in its sights, writes John Drinnan.

Election emails fall from time and space on to the desk of columnist Toby Manhire - who shares them with you today. What do the say about NZ politics?