Mr BUTLER (Port Adelaide) (14:22): My question is to the Prime Minister. This morning the former Deputy Prime Minister, the member for New England, said of the Prime Minister's energy policy, 'I've heard the stories in the past about how it was going to drive down prices, and it didn't.' Why should Australians believe promises from this Liberal-National government when even the former Deputy Prime Minister has confirmed the government lied on power bills before? The SPEAKER: I just caution the member for Port Adelaide on some of the language in that. I will happily hear from the Manager of Opposition Business. Mr Burke: On that point, the phrase, with respect to Labor, has been used many times in answers. If there's to be a new ruling, we're not objecting in any way to the new ruling but simply want to note that this, as I understand it, would not be a ruling with respect to questions but a ruling with respect to what is parliamentary. The SPEAKER: I will call the Minister for the Environment and Energy. I thank the Manager of Opposition Business. Mr Butler interjecting— The SPEAKER: Yes, and I can go through the Practice again about how the Prime Minister is entitled to refer the question to any minister. Mr McCormack interjecting— The SPEAKER: The Deputy Prime Minister will cease interjecting. The minister for the environment has the call.