The proposition that the senator puts forward is a very interesting proposition. The situation was that in the Hawke era you had a responsible Labor leadership supported by a responsible opposition. There was unanimous support in the parliament for that course of action, yet what we have from this government is Mr Shorten wheeling in frontbenchers to Senate estimates to run interference and to run defence for the CFMEU, including trying to ask questions as to why a CFMEU official, that lied on his statutory declaration—

Senator Cameron interjecting—