The Dirty Politics affair descended into chaos this afternoon with reports of that besieged Justice Minister Judith Collins had resigned, a claim she and her office have dismissed.

A few minutes after the latest release of Whaleoil blogger Cameron Slater's hacked message by the individual calling themselves Whaledump this afternoon, Radio Live host Duncan Garner tweeted that Ms Collins had resigned.

Her office said that was not true and Ms Collins quickly followed that up with a tweet saying Garner was "quite wrong".

"Presumably he's the victim of a hoax."

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Ms Collins has been under pressure following the release of investigative writer Nicky Hager's Dirty Politics book a week ago which alleges a National Party dirty tricks campaign run by Slater with help from Ms Collins and Jason Ede, a former staffer in Prime Minister John Key's office.