National says Grant Robertson can't deliver on the savings he's announced by slashing public contractors and consultants' spending. 

The Finance Minister says the move will mean savings of almost $4 billion over the next four years. 

He's also announced a trimming back of programmes and a limit on future budget allowances.   

National Finance spokesperson Nicola Willis told Kate Hawkesby this won't make any difference.

She says the Government has thrown billions at growing the bureaucracy and this kind of spending - so it's too little, too late. 

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