Senator WANG (Western Australia) (14:32): Mr President, I ask a supplementary question. When I asked the minister about this issue almost 2 years ago in this chamber, he said: … any changes to our tax system would have to flow from a tax review white paper process … Minister, what has happened to the comprehensive and strategic tax white paper the government promised? Will you commit to taking a fair GST distribution to the next election, whether or not the government chooses to go to the polls in a double dissolution election to avoid scrutiny of its budget papers?