Mr CHRISTENSEN (Dawson) (14:43): My question is to the Prime Minister. I remind the Prime Minister of her written agreement with the member for Denison that underpinned her ability to form a minority government last year, her pledge before the 2010 election, 'There will be no carbon tax under a government I lead,' and her agreement with the member for Griffith not to challenge him, the night before he was dumped as leader—all of which were broken. I ask the Prime Minister: is there any promise you are not prepared to break? Mr Albanese: Mr Speaker, I rise on a point of order: I refer to the written ruling that you read to the House earlier in question time today, when you gave fair warning that questions such as that should be ruled out of order. Mr Pyne: Mr Speaker— The SPEAKER: The member for Sturt will resume his seat. The question is allowed. I call the honourable Prime Minister.