Nicola Willis is defending her economic track record in the face of a lobby-group's satirical campaign.
The Taxpayers' Union has sent MPs Nicola Willis-branded fudge, claiming she favours treats today and taxes tomorrow.
It suggests Willis should cut spending more.
Willis says the Government has reduced taxes and delivered significant cost savings - while keeping frontline services.
Newstalk ZB senior political correspondent Barry Soper explained why Nicola Willis is keen on making the debate with Ruth Richardson happen.
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