Senator BILYK (Tasmania—Deputy Opposition Whip in the Senate) (14:48): Mr President, I ask a further supplementary question. I note the minister's refusal yesterday to guarantee that the white paper on tax reform promised in 2013 will be delivered by the election in 2016. Will the Turnbull government deliver a tax white paper in this term and will it include a Liberal plan to increase the GST to 15 per cent?