A new poll suggests the saga around David Garrett's false passport and Heather Roy's ousting as deputy leader have hit the Act Party hard.

The new Act MP replacing disgraced David Garrett in Parliament has no criminal skeletons in her closet, but revealed a brothel is run from one of her investment properties.

David Garrett has resigned from Parliament, following the fallout from the revelation he stole the identity of a dead infant and used it to get a fake passport.

David Garrett believes details about his identity theft were leaked by Heather Roy's supporters to discredit Act leader Rodney Hide.

Garth George writes that the real reason to wish Act good riddance is its stupidity in managing its hypocritical MPs.

Labour tried to turn the screws on John Key yesterday after he said Rodney Hide had acted to a 'high ethical standard'.

Disgraced MP David Garrett will reveal the inside story of the strife within the Act Party in an interview to be published tomorrow, according to a report this evening.

David Garrett this morning reportedly said he would resign from Parliament tomorrow without informing Act leader Rodney Hide.

Prime Minister John Key has said he could work with anyone as leader of Act - apart from Sir Roger Douglas.

Rodney Hide continues to cling to his leadership of embattled Act as a party insider and political opponents called for him to step down.

Act leader Rodney Hide says he will only step down if he considers it is in the party's best interests - and he doesn't.

Former Act MP David Garrett, a lawyer, could face a professional misconduct probe.