Was last year's general election a vote that gave National the mandate to sell off state-owned assets?
A Labour and Greens-backed alliance is due to launch a petition that calls for a referendum on the partial sale of state-owned enterprises.
John Key and the government claimed a mandate for the sale was achieved through their emphatic victory in the general election last year.
Should a Citizens' Initiated Referendum be held or have we already had it in the form of the election?
Read the 3 News complete guide to asset sales here