Australian Prime Minister Malcolm Turnbull's besieged leadership faced renewed threats on Thursday, after several Liberal Party lawmakers resigned in protest over his premiership.
If the petition arrives showing this, the meeting will be held at midday on Friday and Turnbull will not stand as a candidate and leave parliament.
"What began as a minority has by a process of intimidation persuaded people that the only way to stop the insurgency is to give in to it", he said. "I have never given in to bullies", he added.
Prime Minister Malcolm Turnbull is behind his three challengers in every single betting agency, with odds as far outside as $80 being offered by BetFair.
The question comes down to whether Mr Dutton's stake in a trustee company that operates two childcare centres constitutes a conflict of interest, given the centres receive subsidies that were legislated by the Turnbull government.
Turnbull had defeated Dutton 48-35 in a surprise vote on Tuesday.
The prime minister had hoped the first ballot, called by himself, would end speculation his government had lost faith in him after poor opinion polling and a by-election defeat in Queensland.
"Earlier this week in the Nationals party room were discussing how to help farmers, the drought and emergency services workers, while the Liberals were talking about leadership changes", he said.
Ms Bishop has reportedly told colleagues she will not serve as "another man's deputy".
Foreign minister Julie Bishop is emerging as a clear favourite among bookmakers in the lead-up to a potential Liberal Party leadership ballot on Friday.
Bishop also consistently polls better than many other Liberal contenders - and certainly does in the case of the largely disliked Peter Dutton and Scott Morrison.
"I can't ignore the fact that a majority of colleagues in the Liberal Party. are of the view that there should be a change", he said.
Voters expect that they will get to judge their leaders at the ballot box.
The uneasy unity held sufficiently to secure a narrow election victory in 2016.
I have loyally supported Turnbull since he was elected and wanted to support him for years to come ... Reports coming out of Canberra on Friday suggested those 43 signatures have been obtained.
Former Australian Home Affairs Minister Peter Dutton speaks to the media during a news conference at Parliament House in Canberra, Australia, August 21, 2018. Some constitutional lawyers say there are areas of doubt.
Mr Dutton's case was unlike previous tests of Section 44, he said, and the seven justices of the High Court were clearly divided over the section's interpretation.
Vanstone, a cabinet minister for the entire almost 12 years of the Howard government revealed part of his genius for running the party's broad church so successfully and it's a warning to the Dutton camp to not swing too far to the right.
"If anyone needs to depart from this place, it is not the parliament, it is this government of Australia who has lost the confidence not just of its own backbench, not just of the opposition, you've lost the confidence of everyday Australians".