Peter Costello slammed government pledge for 'lower , simpler , fairer ' taxes . The former treasurer singled out Joe Hockey 's proposed new bank tax and Josh Frydenberg 's push for revenue from multinationals . Mr Turnbull said the Coalition would not be "putting up with this kind of nonsense any longer" but he did acknowledge that there were some areas where it could work together.
Peter Costello slammed government pledge for 'lower , simpler , fairer ' taxes . The former treasurer singled out Joe Hockey 's proposed new bank tax and Josh Frydenberg 's push for revenue from multinationals . Mr Hockey hit back at Mr Costello , saying he wished he had the tax revenue the former treasurer had when the Coalition was last in power .