Senator CASH (Western Australia—Minister for Small and Family Business, Skills and Vocational Education) (14:55): I thank Senator Watt for the question. Senator Watt, you know more than I do, because I've only just been informed of that matter—by you. Whether or not it's true, I have no idea, but I'll take it on your word that it is. I have not discussed it with my former chief of staff, but I also would make the point that he is a private citizen, and it is sub judice. Also, Senator Watt, you would be aware that you can issue a subpoena to anyone. It does not mean that they actually had information that is relevant to the case. The AWU may well want to subpoena Mr Shorten, for example, to ask him, 'Did you authorise the $25,000 donation that you gave to your own campaign?' The AWU may wish to subpoena Mr Shorten to answer the question, 'Did you authorise the $100,000 that you gave to GetUp! that was the money of the member of the AWU?' They are the fundamental questions, and those on the other side have asked a lot of questions in relation to Mr Morrison over events that occurred some time ago. Well, maybe Mr Shorten ought to front up. The AWU can subpoena him, because you can subpoena anybody. The PRESIDENT: Senator Wong on a point of order. Senator Wong: Yes, a point of order on direct relevance: this minister is the last person who should be talking about 'fronting up'. The question had nothing to do with the issues she's raised. It goes to the subpoena of her chief of staff in relation to events that occurred whilst he was her chief of staff. The PRESIDENT: Minister, Senator Wong has reminded you of part of the question. As long as you are directly relevant to part of the question, I cannot instruct a minister how to answer. Senator CASH: The question was in relation to AWU subpoenas. I advised Senator Watt that I wasn't aware of what he just stated. I also advised him that you can actually subpoena anybody; there is no law against that. In fact, there is a law that allows you to do that. And perhaps the AWU would like to subpoena Mr Shorten so that he can absolutely give evidence—once and for all—that yes, he did or he didn't authorise the $25,000 he gave to his own campaign and authorise properly, in accordance with union rules, the $100,000 he gave to GetUp! The PRESIDENT: Senator Watt, a supplementary question.