The new Finance Minister is painting a dismal fiscal picture ahead of the incoming mini budget. 

The Government's announced the mini-budget will land on December 20th and outline actions the new regime is taking around fiscal discipline.  

Minister Nicola Willis told Mike Hosking that she believes the previous Government left fiscal booby traps, and she is working through the messes systematically.  

She says they knew spending was out of control, but not the scale of financial mess Labour left behind it.  

Willis says it's about being responsible custodians of public money. 

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