Maori Party MPs are said to be under pressure from their ruling party council to reverse their support for the emissions trading scheme legislation.
News websites are reporting that the Maori Party's national council will hold a telephone conference today, as some of the 26 senior representatives that make up the party's ruling body are unhappy with the deal with National.
The ETS legislation is being debated in Parliament and if the unhappiness of the party members translated into a reversal of support the bill would not pass.
It would be a major political embarrassment for the Maori Party leaders Pita Sharples and Tariana Turia if they had to renege on their deal which they championed as a great deal for their constituents.
News sites are quoting an anonymous senior Maori Party officials saying some members of the council were unhappy with the lack of consultation over the deal.
There was also concern about the costs of the scheme and the Maori Party reportedly have said that the ETS would increase debt and costs for low income people due to subsidies for polluters.
NZPA