Senator BILYK (Tasmania—Deputy Opposition Whip in the Senate) (14:45): Mr President, I ask a supplementary question. I refer to the Prime Minister's pre-election promise that there will be no new taxes. I also refer to the introduction of a $7 GP tax, which has been described by senior Liberal Senator Ian Macdonald as 'dangerous'. If the coalition's own backbench has recognised the danger of this new tax, why will the government not do the same and abandon this measure?