Lawrence Springborg faces challenge from Tim Nicholls and Tim Mander
Queensland's Liberal National Party could have a new leader by Friday afternoon, with a spill motion to be called at an impromptu partyroom meeting.
Father of the party, Opposition Leader Lawrence Springborg, is facing a challenge from the "Tims" — former treasurer Tim Nicholls and former opposition education spokesman Tim Mander.
Party veteran Jeff Seeney will bring forward a motion to declare the party's leadership positions vacant, and if successful, it is unclear at this stage whether Mr Springborg would enter the fray.
As the leader hopefuls try to shore up support, the ABC takes a look at the challengers, and the potential deputy.
The ALP has said that the former treasurer has the numbers.
Mr Nicholls served as treasurer in the Newman government and was the face of the doomed $33 billion asset leasing program.
Despite a government survey of the public showing they did not support the plan, Mr Nicholls pushed ahead anyway which contributed to the LNP's humiliating 2015 defeat.
Political analysts say Mr Nicholls has the skills to overcome the baggage, and will be the likely winner, and also the biggest threat to Labor.
He entered parliament in 2006 and holds the Brisbane seat of Clayfield by a safe margin, which is one of Mr Nicholls's selling points over Mr Mander.
Currently serving as the Opposition's infrastructure and planning spokesman, Mr Nicholls said his strengths were policy depth, the ability to secure donations and offering security as an MP in a safe seat.
He has indicated that he wants Deb Frecklington to be his deputy.
Mr Mander should have name recognition after a 20-year career as an NRL referee, which he would hope broadens his appeal to football towns, particularly in northern Queensland.
Crowned "Queensland father of the year" in 2005, Mr Mander is an arch conservative and was formerly the chief executive of the Scripture Union Queensland, which provides school chaplains.
The second-term MP has enjoyed a rapid rise in the LNP.
He was appointed as assistant minister for sport and racing in the Newman government and eight months later was promoted to racing minister before taking on housing and public works minister.
His achievements included reducing the social housing waiting list by more than 30 per cent.
He become only the second conservative member for the Brisbane seat of Everton in its 40-year history, however the wafer thin margin is working against him, with critics saying could be too risky heading into an election.
The LNP's perennial bridesmaid certainly knows how to be in Opposition.
First elected as an MP in 1989 at the age of 21, Mr Springborg claims the title of the youngest MP to be elected to the Queensland Parliament.
He is considered the father of the party and was integral in the merging of the National and Liberal parties in 2008.
His Southern Downs seat is considered very safe and he has been a solid performer in parliament, and arguably reached a career highlight by "fixing" the controversy-laden health portfolio under the former Newman government.
His downfall is the perception that he is unelectable, after leading the party to three election losses, in 2004, 2006, and 2009.
Despite recent polls having the LNP ahead, Mr Springborg's personal popularity still trails Premier Annastacia Palaszczuk, which has contributed to Friday's potential challenge.
Widely considered a rising LNP star since her election in 2012, Ms Frecklington has been courted by Mr Nicholls and Mr Mander to serve as their deputy.
She has not announced her intention, nor whether she would side with Mr Nicholls, however, it has been reported she has rejected Mr Mander's proposal.
The former solicitor and farm manager served as assistant minister to Mr Nicholls for two years and was assistant minister to Mr Newman, and currently serves as the opposition agriculture spokeswoman.
Sitting in Sir John Bjelke-Petersen's former seat of Nanango, north-west of Brisbane, Ms Frecklington as deputy would dampen rural and regional fears that an LNP leadership was too south-east centric.
Source: ABC News