Independent MP Tony Windsor has launched a blistering parliamentary attack on Tony Abbott's integrity, recalling the Opposition Leader said he would have done anything to become prime minister except "sell my arse".
Mr Windsor's withering attack, complete with finger pointing at the Opposition Leader, came after Mr Abbott attempted to censure Julia Gillard on the two-year anniversary of her no carbon tax promise.
He said Mr Abbott "begged for the job" during the 17 days after 2010's inconclusive election and knew that a promise to put a price on carbon would be a condition of forming Government.
"You have never denied it, Tony, and you will not," Mr Windsor told Parliament. "He begged for the job and he made the point, not only to me but to others in that negotiating period, that he would do anything to get that job.
"You would well remember - and your colleagues should be aware - the only codicil that you put on that was: 'I will do anything, Tony, to get this job. The only thing I wouldn't do is sell my arse'."
Reminding Parliament of Mr Abbott's previous support for an emissions trading scheme and for once writing the coalition should support the Rudd government's carbon pollution reduction scheme, Mr Windsor said Mr Abbott was an absolute disgrace.
Mr Abbott said Mr Windsor's assertions were "self-evidently" not true.
"I was not prepared to introduce a carbon tax in breach of my pre-election commitments," he said. "There are lots of things I would never do to get the top job and one thing I would never do is break a clear pre-election promise."
Shadow treasurer Joe Hockey tweeted: "Tony Windsor shows his true colours facing emphatic defeat in his own seat. Rolled gold Labor. Sad but not surprising."