Parliamentary regulations may have been broken and public money misused when the Government came up with the ill-fated 10-bridges promise during the Northland byelection.
The breach in protocol has Labour's Transport spokesman Phil Twyford suggesting Mickey Mouse could have done a better job of building in Northland.
Mr Twyford said taxpayers' money had been used wrongly in the process leading up to the $69 million promise to double-lane 10 one-laned bridges on Northland's highways.
That scheme was announced by Transport Minister Simon Bridges two weeks before the byelection date.
But Minister of Finance and Deputy Prime Minister, Bill English says it is "against the rules" for Government officials and resources to be used for proposals that belong to individual political parties.