The Maori Party is sticking to its warning it could walk out on National over the removal of a Treaty clause in state asset sales plans, despite Prime Minister John Key's attempts to dampen down its members' anger.

Co-leaders Tariana Turia and Pita Sharples yesterday said they would consider walking out on their deal with National if a clause which protected Treaty of Waitangi principles was not extended to new legislation that will cover partial state asset sales.

The Government will release a consultation document on the issue today before a series of hui next week on the plans to sell minority stakes in four energy companies.

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