Act leader John Banks has admitted he may have tried to lobby a government minister on behalf on Megaupload millionaire Kim Dotcom more than once, and says he would do it again.
Mr Banks has found himself at the centre of a controversy over donations to his 2010 mayoral campaign after Dotcom claimed he he donated $50,000.
The money was deposited in two payments of $25,000, and listed on the mayoral return as anonymous.
Dotcom has claimed that Mr Banks knew the money was from him, but the MP has denied that.
The pair have reportedly met four times, including once when Mr Banks was flown to Dotcom's Coatesville mansion by helicopter.