Senator BILYK (Tasmania—Deputy Opposition Whip in the Senate) (14:55): Mr President, I ask a supplementary question. I refer to the email from Liberal organiser of the event, Mr Greg Burton, who said he would be inviting politician lawyers including federal parliamentarians. Did any of these politician lawyers raise any concerns with the Prime Minister's office regarding Commissioner Heydon's lack of impartiality in addressing the New South Wales Liberal Party while the royal commission was still afoot?