Cabinet, party room supportive: Turnbull

Malcolm Turnbull has rejected claims that changes to his energy policy are aimed at holding off a leadership challenge.

There is speculation Home Affairs Minister Peter Dutton could challenge Mr Turnbull for the Liberal leadership, amid concern over the government's National Energy Guarantee.

"I enjoy the confidence of the cabinet and of my party room," Mr Turnbull told reporters in Canberra on Monday.

Asked whether he had spoken with Mr Dutton, the prime minister said his cabinet colleague was at the leadership group meeting on Monday morning and had attended cabinet last night.

"He is a member of our team. He has given me his absolute support."