On the night of 19 October 2024, the tally room in Canberra settled into a story it had told six times before. By the time the Electoral Commissioner declared the result eleven days later, ACT Labor had won a seventh consecutive election, extending an unbroken run in office to twenty-three years. Any Canberran who turned eighteen in time to vote in October 2001 is now approaching their mid-forties and has never once cast a ballot that changed the government.
That is not, on its own, evidence of anything wrong. Voters chose Labor seven times running because, on the numbers each October produced, enough of them preferred it to the alternative on offer. But twenty-plus years of one governing bloc controlling the only chamber of a parliament that has no upper house to check it is also a genuinely unusual position for an Australian jurisdiction to be in. It raises a question distinct from whether any single Barr Government decision was good or bad: whether that much uncontested time in office, inside a system built without the counterweight every mainland government answers to, breeds the kind of institutional complacency that shows up years later — in a standing anti-corruption body that arrived two decades late, and in a credit rating that used to be untouchable.
Seven elections, one government
ACT Labor returned to office on 20 October 2001 under Jon Stanhope and has not lost since. Stanhope won again in 2004 and 2008, the second of those forming a minority government reliant on the territory's first Green MLA, Shane Rattenbury, to hold the balance of power. Katy Gallagher succeeded him in 2011 and led Labor to a fourth consecutive term in 2012 — the year Labor and the Greens signed their first formal Parliamentary and Governing Agreement, rather than governing on ad hoc crossbench support. Andrew Barr became Chief Minister on 11 December 2014 after Gallagher moved to the Senate, and has since led Labor to three further wins, in 2016, 2020 and 2024, the last two under an Assembly expanded in 2016 from 17 to 25 seats. By June 2024 Barr had overtaken Stanhope's own record to become the longest-serving Chief Minister in ACT history; nationally, he has been Australia's longest continuously serving state or territory leader since Victoria's Daniel Andrews resigned in September 2023.
The Greens have been Labor's governing partner, in one form or another, for most of that period, but the exact shape of the partnership has moved. Formal Parliamentary and Governing Agreements ran from 2012 through the 2016 and 2020 elections, and by 2020 the arrangement had deepened into a genuine coalition: three Greens MLAs, including leader Shane Rattenbury, sat in Andrew Barr's nine-member Cabinet after the Greens won a historic six of the Assembly's twenty-five seats. The 2024 election broke that pattern. Labor held its ten seats and the Liberals their nine, but the Greens' primary vote fell to 12.2% and the party lost two of its six seats — including two sitting ministers, Rebecca Vassarotti and Emma Davidson — to independents Thomas Emerson in Kurrajong and Fiona Carrick in Murrumbidgee. Rattenbury wrote to Barr on 5 November 2024 proposing that the Greens sit on the crossbench rather than in Cabinet, offering a Supply and Confidence Agreement — guaranteed votes on supply and no-confidence motions, in exchange for policy and staffing commitments — instead of a governing coalition. For the first time since 2012, the Barr Government is a Labor minority government relying on crossbench supply, not a Labor-Greens executive, even though "twenty years of Labor-Greens rule" is still the shorthand most public commentary reaches for.
A parliament with only one chamber
The ACT Legislative Assembly is unicameral: 25 members, elected from five five-member electorates under the Hare-Clark proportional system, with no upper house sitting above it to hold up legislation, compel a minister to appear, or provide a chamber a governing bloc does not control. Every mainland state pairs its lower house with a Legislative Council; the ACT, like the Northern Territory, never built one, on the reasoning that a small self-governing territory did not need the cost and delay of two chambers to arrive at good law. The trade-off is that every function an upper house would otherwise perform — estimates hearings, references committees, a numbers-based check on the executive answerable to a different majority — instead runs through Assembly committees drawn from the same 25 members whose votes the government needs to pass its own budget.
The territory has built statutory substitutes over time, but slowly and unevenly. The Auditor-General has been an independent officer of the Assembly since the Auditor-General Act 1996, appointed for a fixed seven-year term with, on paper, complete discretion over what to audit. The Assembly's Standing Committee on Public Accounts and Administration — re-established after the 2024 election on 3 December — examines the Auditor-General's reports and the government's spending bills, and in recent Assemblies has commissioned an outside economist as an independent Budget Adviser to give a single, government-numbers-dominated committee analytical capacity it would not otherwise have. An Ombudsman handles maladministration complaints. But a standing anti-corruption body did not exist at all until the Integrity Commission Act 2018 established the ACT Integrity Commission, which began full operations in December 2019 — eighteen years into the current government's tenure, and thirty-one years after New South Wales opened its Independent Commission Against Corruption in 1988. None of these bodies is a substitute for a second chamber the government does not control; each still depends, ultimately, on the same 25-member Assembly for its budget and its legislative mandate.
The strongest case
Voters have rewarded stable government seven times running, freely and repeatedly
The strongest case for twenty-plus years of Labor-Greens rule starts with the plainest fact about it: Canberrans keep choosing it. Seven elections since 2001 is not incumbency by accident or malapportionment — Hare-Clark is one of the more genuinely proportional voting systems used anywhere in Australia, and it has still returned the same governing party every time, including through the global financial crisis, a pandemic, and a cost-of-living shock that cost the governing party office at the 2022 federal election, in New South Wales in 2023, and in Queensland and the Northern Territory in 2024. Stability of that kind carries real value for a small, single-city jurisdiction whose economy is unusually exposed to Commonwealth public-service employment decisions it does not control: multi-decade infrastructure commitments and planning reforms are easier to see through to completion when the government making them is not replaced every term. The Parliamentary and Governing Agreements from 2012 to 2020, and the 2024 Supply and Confidence Agreement that replaced them, are also genuine transparency innovations — written, published documents that disclose a minority arrangement to voters in a way many mainland post-election deals never are. Twenty-three years of the same governing party is, at minimum, what happens when an electorate is repeatedly and freely offered a change of government and consistently declines to take it.
The evidence
The clearest evidence sits in the same set of numbers twice over: the record of who has kept winning, and the record of how the mechanisms meant to check the winner have performed while it kept winning.
Labor's own seat count has barely moved in this period — ten of twenty-five seats at both the 2020 and 2024 elections, with enough minor-party or independent support each time to govern. What moved was the shape of that support: the Greens' six seats, the platform for three ministers inside Cabinet in 2020, fell to four in 2024, with the balance of power passing to two independents outside any standing agreement with Labor. Independent budget analysis prepared for the Assembly's own Public Accounts Committee gives a sense of what two decades of largely uncontested budgeting produced on the fiscal side: net debt grew from around $312 million in 2013-14 to close to $9 billion by 2024-25, on a trajectory that warned annual interest costs could approach $1 billion a year without corrective action (approx., Legislative Assembly Budget Adviser review of the 2024-25 Budget). Standard & Poor's downgraded the territory's credit rating from AAA to AA+ on 8 September 2023, citing a slower-than-expected post-pandemic recovery, and again to AA in September 2025 (approx.), citing continued deficits. None of that proves twenty-plus years in office caused the debt. It does show that the scrutiny an upper house would ordinarily apply to a government approaching consecutive downgrades came, in the ACT's case, from a ratings agency rather than a chamber inside its own parliament.
The critique
The specific critique here is not that Labor has governed badly for two decades — other analyses on this site examine the light rail cost, the CIT contracts scandal, hospital ramping and the rates base individually, and the record there is genuinely mixed. The critique is structural: a single bloc holding the only chamber of the Assembly for this long, in a system with no upper house, has repeatedly delayed the point at which independent scrutiny catches a problem, rather than prevented the problem. The clearest example is the territory's own integrity architecture. Every mainland state built a standing anti-corruption commission with public hearings and coercive powers between 1988 and 2012; the ACT's Integrity Commission did not exist until the Integrity Commission Act 2018 was passed, and it did not begin investigating anything until December 2019 — after five Labor-led terms and eighteen years in which a government answerable to no upper house had already been setting the territory's own procurement, planning and contracting rules. When the Commission's first full-time Integrity Commissioner, Michael Adams KC, did start looking at ACT Government procurement, he described some of what he found as potentially "endemic" — a judgment only made possible once the institution existed to make it.
The fiscal record shows a similar lag. The Standing Committee on Public Accounts and Administration — the closest thing the ACT has to upper-house budget scrutiny — was itself only re-established after the 2024 election, on 3 December, and its numbers are drawn from the same 25 MLAs whose votes the government needs to pass its own budget; the governing side of politics has held the chair or the majority on it for most of the past two decades. The Auditor-General's independence is real on paper, but the warnings about the debt trajectory and the resulting downgrades arrived only after the deficits and the debt had already compounded for years — the pattern of an accountability system built to confirm decisions after the fact, rather than to contest them while they are being made, which is precisely the gap an upper house exists to close in every mainland state that has one.
Twenty-three years of one governing bloc has not been checked by a second chamber it doesn't control, because the ACT never built one.
The 2024 result complicates the simplest version of this argument, and a fair account has to say so. Voters did not hand Labor and the Greens an unconditional renewal — the junior partner was punished at the polls and pushed to the crossbench. That is real accountability working through the ballot box, inside a system that otherwise lacks an upper house to apply it a second way. But it has not changed who holds the numbers to govern, form the executive, and staff the committees that scrutinise it. Labor's core seat count has been ten of twenty-five for eight years running, and no configuration of the 2024 result put anyone but Andrew Barr in the Chief Minister's office.
The risk to the future
A twenty-third year in office with the same unicameral checks that let the debt run to $9 billion
The ACT enters the second half of this decade with a government in its third decade, an Assembly still built without an upper house, and an Integrity Commission and Standing Committee on Public Accounts still working through their first full decade of existence between them. If net debt keeps compounding toward the more than $12 billion the Assembly's own Budget Adviser projected by the end of the forward estimates (approx.), and Standard & Poor's applies a further downgrade after 2023 and 2025's, the same institutions that were in place while the debt got there — an Auditor-General with no power to block spending, a young Integrity Commission, a Public Accounts Committee whose numbers the government itself effectively controls — will still be the ones relied on. The 2024 election showed Canberra voters will punish the governing bloc's junior partner when its performance slips; it did not show them a remedy, short of removing Labor from office altogether, for holding the senior partner to account between elections — something no ACT electorate has done in almost a quarter of a century. A system with one chamber and one dominant party has, in the end, one real accountability mechanism: the next election. Whether that is enough depends on how much fiscal and integrity damage can accumulate in a four-year term before voters get the chance to use it.