Antony Green has published a pendulum display of post-redistribution seat margins for the federal election along with some explanation of what this entails. He did so exactly as I was finalising my own parallel effort, which I present here in the shape of a mock-up of the entry page for the federal election guide I’m hoping to publish around mid-January (a Western Australian election guide will precede it by a couple of weeks).
The margins shown are simply those from the 2022 election where no redistribution has been conducted, but the redistributions for New South Wales, Victoria, Western Australia and the Northern Territory require a process of distributing the votes from 2022 across the redrawn electorates. The Northern Territory redistribution is still in the public consultation phase, but I have taken a punt on the proposed boundaries (in this case simply a matter of drawing the line between Solomon and Lingiari) being adopted as they seem impossible to argue with, and it appears Antony Green has reached the same conclusion.
I believe the redistribution calculation methods used by Antony and I are identical with respect to how they handle ordinary votes, (i.e. those cast on election day or at pre-poll voting centres), but we have presumably adopted different methods to deal with the difficult question of “non-static” vote types that are published in aggregate for the whole electorate with no further indication of their geographic variation. I haven’t crunched the numbers too thoroughly, but the biggest anomaly I can see is that we have landed 0.5% apart in the substantially redrawn seat of Chisholm. We are in agreement that the margin in Deakin is a tiny 0.02%, but where he has it in favour of the Liberals, I make the seat to be notionally Labor.
Where we substantially differ is in seats with an independent is part of the equation. Calculations here are necessarily speculative, as independents will not have been on the ballot paper in newly added areas (where transfers have been conducted between teal seats, this can be dealt with by treating them as a collective). Antony has a method involving comparison of House and Senate vote shares which he says is “imperfect, but so are all alternatives”. The imperfection of my method, which gives independents no primary votes from newly added areas and allocates only the preference flows they might have expected from the other candidates, is that it’s very harsh on the independents, a fact most apparent with respect to Kooyong, where my 0.1% margin for Monique Ryan compares with Antony’s 2.2%.
Complete accountings of my redistribution calculations can be observed through the following links, for New South Wales, Victoria, Western Australia and Northern Territory.
Polling and electoral developments of note:
• This week’s Roy Morgan poll had the Coalition leading 52-48, out from 51-49 a week before, from primary votes of Labor 28% (down two, their worst result of the term), Coalition 38% (down half), Greens 13% (up half) and One Nation 6.5% (steady). The previous election two-party measure was a dead heat, unchanged on last week.
• The Australian reported last Saturday that a EMRS poll covering all five seats in Tasmania pointed to a status quo result of two Labor, two Liberal and one independent. In Labor’s precarious seat of Lyons, a generic party-based question has Labor on 34%, Liberal on 31%, the Greens on 11% and Jacqui Lambie Network 4%, while a separate question specifying candidates had 40% for Labor’s Rebecca White, 31% for Liberal candidate Susie Bowers and 9% for the Greens. The Liberals were well ahead in Braddon, leading 44% to 27% on the primary vote with the Greens on 9% and JLN on 7%. In Franklin the results were Labor 36%, Liberal 35% and Greens 11%, suggesting Labor would survive a substantial swing.
• Liberal MP Paul Fletcher announced this week that he will not recontest his seat of Bradfield. Fletcher retained the seat by 4.2% in 2022 in the face of a challenge from teal independent Nicolette Boele, who will run again at the coming election. His announcement comes shortly after teal independent MP Kylea Tink said she would not contest the seat following the abolition of her existing seat of North Sydney, much of whose territory will be transferred to Bradfield. The Sydney Morning Herald reports on two contenders to succeed Fletcher as Liberal candidate: Gisele Kapterian, an international trade lawyer and former staffer to Julie Bishop who shares Fletcher’s moderate factional alignment, and Penny George, director of corporate affairs at AstraZeneca and wife of state upper house member Scott Farlow. Kapterian was endorsed last year as the candidate for North Sydney, but had the rug pulled from under her with the seat’s abolition.
• Liberal MP Ian Goodenough, who lost preselection in his northern Perth suburbs seat of Moore to former Stirling MP Vince Connelly, has surprised nobody by announcing he will seek re-election as an independent. Connelly was the member for Stirling, part of which is now the southern end of Moore, from 2019 until its abolition in 2022. Goodenough claims to have been told that “opportunities might arise that would be of benefit” if he didn’t run.
• The Australian’s Feeding the Chooks column reports former Senator Joanna Lindgren is “poised” to be preselected as the LNP’s candidate for the Ipswich region seat of Blair, held for Labor by Shayne Neumann on a margin of 5.2%. Lindgren served in the Senate for a year after filling a casual vacancy but failed to win re-election at the 2016 double dissolution. Trevor Evans, who lost Brisbane to the Greens in 2022, is expected to again be chosen as the party’s candidate for the seat at a preselection to be held today, though he faces an opponent in Fiona Ward, a past federal and state candidate and regular preselection aspirant. Two contenders are named for the party’s preselection for Lilley, held for Labor by Annika Wells on a 10.5% margin: Kimberley Washington, a former staffer to LNP-turned-independent Senator Gerard Rennick, and Dylan Conway, an army veteran and founder of a mental health charity.
• Sarah Elks of The Australian reports Clive Palmer has launched a High Court bid to overrule a section of the Electoral Act that disallowed him from re-registering his United Australia Party for the next election after his voluntary deregistration of it in September 2022. The report quotes electoral law expert Graeme Orr saying the section exists to prevent newly deregistered parties having their names poached and did not reckon seeking to de-register and re-register, the “obvious reason” for which was to avoid having to make financial disclosures.
• The Victorian state by-election for Prahran will be held on February 8, with the ballot paper draw to be held on January 17. Tony Lupton, who held the seat for Labor from 2002 to 2010, has announced he will run as an independent, calling his former party’s decision to forfeit the contest “cowardly”. The Liberals will choose their candidate in a preselection ballot today.
• South Australia’s state redistribution has been finalised. Ben Raue at The Tally Room has taken a much closer look than I have, and concludes that the already minimal changes from the proposal have become even more conservative in the final determination. One change is that the seat of Frome will become Ngadjuri, owing to concerns raised that the seat’s namesake had been involved in a retribution attack on an Aboriginal encampment.
• Poll Bludger regular Adrian Beaumont offers an overview of results for last month’s US presidential and congressional elections with a more optimistic take for Democrats than most commentators, especially their prospects at the November 2026 midterm elections.