Electoral paperwork is landing two MPs in hot water. 

The Greens have referred suspended MP Darleen Tana to the Electoral Commission for failing to put a promoter statement on a magazine advertorial. 

The party itself is investigating what she knew about allegations of migrant exploitation relating to her husband's business. 

At the same time, National has stripped MP David MacLeod of his Select Committee positions, after he failed to declare 19 donations. 

Former National ministerial advisor Brigitte Morten told Mike Hosking that it brings MacLeod's competence into question. 

She says with the support available around donation declaration, there's no excuse. 

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