The Prime Minister claims the previous Labour government mismanaged the economy abysmally.

The half yearly economic and fiscal update will be released next week.

Finance Minister Nicola Willis has also promised a mini budget before Christmas.

Chris Luxon told Mike Hosking over the last week they've discovered Labour's left fiscal cliffs and holes.

He says there's unfunded commitments, time limited funding and he thinks there'll be massive overruns, which have been seen with transport projects.

LISTEN ABOVE