After a week of torrid speculation about the future of the Australian Prime Minister Tony Abbott, a member of his ruling Liberal Party says he will seek a motion on Tuesday to declare the country's top job vacant.


Western Australian lawmaker Luke Simpkins says Australians have stopped listening to Abbott and if no one's listening, Abbott can't lead the party.


If Tuesday's vote is successful, then a call will be made for nominations for the position of prime minister and deputy leader of the Liberal Party.


The prime minister however is defiant.


In a bombshell announcement, Abbott declared he and Foreign Minister Julie Bishop, the deputy leader of Abbott's party, stand united and will urge the party not to declare their positions vacant.


Bishop has been widely tipped to be a possible aspirant for the top job.


"We are not the Labor Party," Abbott told a hastily convened media conference, in a reference to the turmoil between 2010 and 2013 when the then ruling Labor Party ousted two leaders amid unseemly leaks and constant threat of leadership change.


"We are not going to repeat the chaos and the instability of the Labor years, so I have spoken to deputy leader Julie Bishop and we will stand together in urging the partyroom [party] to defeat this particular motion and in so doing, and in defeating this motion, to vote in favor of the stability and the team that the people voted for at the election."


Abbott's insistence that the people elected him has angered some in his party.