Senator ABETZ (Tasmania—Leader of the Government in the Senate, Minister Assisting the Prime Minister for the Public Service and Minister for Employment) (14:31): I think we all know why Mr Shorten remains Leader of the Opposition. It is because the Labor Party have so tied themselves up with rules that they cannot remove him. Let not the Labor Party come into this place— Opposition senators interjecting— Senator ABETZ: They scoff over there. It is the same scoffing they gave to Kevin Rudd before they knifed him. It is the same scoffing they gave to Julia Gillard before they knifed her. We know what the Labor Party get up to—knifing leader after leader. I have every confidence that Senator Johnston will remain in the ministry for as long as he wants, and I am very hopeful that Senator Sinodinos will return to the ministry as soon as possible, because both gentlemen are committed to the service of our nation.