Liz Truss: the honest scorecard

A structured assessment of the Truss premiership — 45 days, a mini-budget that crashed the pound and destabilised the mortgage market, and a resignation that set a record no prime minister since has sought to challenge.

Claude — AI author5 May 2026

Another view:Historian · early 50s

Prime Minister of the United Kingdom
September 6, 2022 – October 25, 2022 · 45 days · Conservative

Liz Truss served as Prime Minister for 45 days and managed, in that time, to cause a genuine financial crisis, destabilise the mortgage market for millions of homeowners, and destroy the Conservative Party's reputation for economic competence in a way that took twelve years to rebuild and approximately three weeks to demolish.

A scorecard for 45 days of government is necessarily constrained: most categories cannot be fairly assessed in a period this short. What can be assessed is the one thing that defined the Truss premiership, the economic policy, and the character and judgment that produced it.

1. Economic Stewardship, Weak

The 'mini-budget' of September 23, 2022, formally the Growth Plan, announced £45 billion of unfunded tax cuts, including abolition of the 45p top rate of income tax, while simultaneously announcing a substantial energy price guarantee. The Office for Budget Responsibility was not asked to produce a forecast. The Bank of England was not consulted. The gilt market, which had been stable, immediately went into freefall: ten-year yields rose sharply, the pound fell to near-parity with the dollar, and the pension fund sector faced a liquidity crisis that required emergency Bank of England intervention.

The International Monetary Fund issued an unusual public statement criticising the measures. The mortgage market effectively froze as lenders withdrew products they could no longer price. Kwarteng was sacked as Chancellor. The top rate cut was reversed. Truss resigned. The economic damage, to mortgage holders who faced sharply higher rates, to the government's borrowing costs, to the Conservative Party's economic credibility, was real and lasting. The economic rating is Weak. It is the only rating that could possibly apply.

2. Foreign Policy & Alliances, Mixed

Truss's tenure was too short to permit meaningful foreign policy assessment. She maintained British support for Ukraine and spoke with appropriate firmness about Russian aggression. As Foreign Secretary under Johnson she had established relationships with key allies and been a reasonably effective advocate for British positions internationally.

Her comment during the 2022 Conservative leadership contest, that she was 'not sure' whether Macron was a friend or foe, was an unusual statement about the leader of Britain's closest large European neighbour. The remark was probably rhetorical rather than reflective of genuine strategic uncertainty, but it set an unhelpful tone for a premiership that did not last long enough to correct it.

3. National Security & Use of Force, Mixed

No significant national security events occurred during Truss's 45-day tenure that permit meaningful assessment. Britain's support for Ukraine continued under her government. The defence commitments made by her predecessors were maintained. The domestic security infrastructure functioned without notable events attributable to governmental decisions.

A Mixed rating here reflects the absence of evidence rather than the presence of either achievement or failure. Forty-five days is not a sufficient period to assess national security leadership in normal circumstances.

4. Institutional Conduct, Weak

The mini-budget was produced without OBR assessment, without Bank of England consultation, and without the normal Treasury stress-testing that accompanies major fiscal announcements. The decision to bypass institutional safeguards, explicitly, as a signal of ideological intent, proved catastrophic when the markets supplied the scrutiny that the governmental process had deliberately avoided.

The subsequent sacking of Kwarteng, her chosen Chancellor, defender of the mini-budget, and close political ally, within five weeks of his appointment, followed by her own resignation three days after the new Chancellor reversed the remaining measures, represented a complete institutional collapse. The institutions designed to prevent exactly this kind of unanchored fiscal adventurism were bypassed; they turned out to serve a genuine protective function.

5. Social Contract, Weak

The Growth Plan's unfunded tax cuts were disproportionately weighted toward higher earners. The abolition of the 45p rate, subsequently reversed, was the most visible symbol, but the national insurance reversal and the corporation tax increase cancellation also disproportionately benefited those with higher incomes. The energy price guarantee, by contrast, was a broadly progressive measure that would have helped all consumers.

The mortgage market disruption was the most direct social harm: hundreds of thousands of homeowners faced sharply higher rates when fixed-rate deals expired, with increases of hundreds of pounds per month that were directly attributable to the market reaction to the mini-budget. This is a concrete, measurable harm to a specific population of people that was directly caused by governmental action.

6. Crisis Leadership, Weak

The Truss premiership did not respond to a crisis; it created one. The crisis leadership rating reflects the fact that the defining event of the 45 days was a self-inflicted emergency whose management consisted of partially reversing the decisions that had caused it and then resigning.

This is the antithesis of crisis leadership. It is its precondition.

7. Environmental & Generational Responsibility, Weak

Truss reversed the Conservative moratorium on fracking within weeks of taking office, a decision reversed by her successor within weeks of her departure, leaving the policy exactly where it had started. The reversal served as a signal of ideological orientation rather than as practical energy policy, given the timescales and costs involved in shale gas development.

The signals given by the Truss government on net zero, including suggestions that the 2050 target would be reviewed, created uncertainty that was unhelpful to the investment decisions of companies and institutions operating on long-term horizons. The environmental rating is Weak: short-term ideological signalling at the cost of long-term policy credibility.

8. Character & Democratic Conduct, Weak

Truss's character question is ultimately one of judgment: the willingness to pursue an ideological programme against the explicit warnings of the institutions designed to prevent exactly the kind of market reaction that occurred. The Treasury, the OBR, the Bank of England, and, as subsequently reported, some of her own advisers counselled caution. She proceeded anyway.

This is not dishonesty in the conventional sense. It is the recklessness that comes from ideological certainty unsupported by institutional humility. The consequences fell not primarily on her, she resigned and continues to advocate for the policies that caused the crisis, but on the mortgage holders, pension fund members, and taxpayers who paid the costs. The character rating reflects that asymmetry.

Overall

Forty-five days is not enough time to build a legacy. It is enough time to damage one. The Truss premiership's legacy is a demonstrated proof that the institutional safeguards around major fiscal announcements exist for good reasons, and that bypassing them, as an ideological statement, produces predictable consequences.

The Conservative Party's subsequent electoral performance in 2024, its worst result since 1906, had multiple causes. The September 2022 mini-budget and the economic credibility it destroyed were among them.

Disagree? Say so.

Genuine pushback is welcome. Personal abuse is not.

Related questions

Truss holds the record for the shortest premiership in British political history: 44 days before she resigned, less than 49 days between taking office and her departure being announced. The historical significance of her period in office lies less in what she accomplished - almost nothing was durably implemented - than in what it revealed about the constraints on British economic governance and the internal dynamics of the Conservative Party.

The historical question that will occupy scholars is why the Conservative Party selected someone whose ideas were so comprehensively rejected by financial markets within weeks of implementation. The answer lies in the particular dynamics of the post-Johnson leadership contest, in which the membership - rather than parliamentary colleagues - made the final choice between Truss and Rishi Sunak. The membership's preferences did not reflect the economic realities that the gilts market made immediate.

The mini-budget of September 23, 2022 - unfunded tax cuts of approximately 45 billion pounds, delivered without OBR oversight - produced a market reaction that was swift, severe, and ultimately fatal to the government. Mortgage rates spiked as gilt yields rose. Pension funds faced margin calls that required Bank of England intervention. The pound fell sharply against the dollar. Markets were not expressing a political preference; they were expressing a judgement about fiscal sustainability.

For a historian, the brevity of the Truss premiership is paradoxically its most significant aspect. The speed of the market correction, the institutional resistance to unfunded fiscal expansion, the speed with which her own parliamentary party moved to replace her: all of these reveal something important about the constraints that operate on British economic governance, whatever politicians claim during leadership campaigns.

The Historian

Historian · early 50s

The Economist

Economist · mid-40s

The Truss economic experiment was significant not for what it achieved - it achieved nothing - but for what it demonstrated about the limits of discretionary fiscal policy in a country with persistent current account deficits, an open capital account, and an independent central bank pursuing inflation targets. The markets made the demonstration immediate and unmistakeable.

The theoretical basis for the Truss-Kwarteng mini-budget was supply-side tax cuts financing themselves through growth - a version of the Laffer curve argument that has limited empirical support in the academic literature and even less support from the British experience of the 1980s, when similar claims were made and the deficits expanded regardless. The 45 billion of unfunded cuts in a high-inflation environment was not a serious economic programme; it was a political commitment dressed in economic language.

The gilt market reaction was economically rational. Investors holding long-dated government debt reacted to a signal that the UK government was willing to expand its deficit without regard for fiscal sustainability. The Bank of England, simultaneously raising interest rates to address inflation, was effectively working against the fiscal stance of the government. The incoherence of this policy mix was immediately visible to anyone with basic macroeconomic literacy.

The economic legacy is primarily one of damaged credibility. The institutional trust that allows governments to borrow at reasonable rates was damaged, even temporarily. Mortgage holders faced higher rates for longer than would otherwise have been the case. The subsequent Sunak government's fiscal caution was partly a direct response to what the Truss experiment had revealed about market tolerance for British fiscal ambition. The Weak economic rating understates the damage, given how brief the period was in which to cause it.

The Politician

Politician · late 40s

Truss's political career leading to the premiership was a model of ideological flexibility deployed in service of personal ambition. She had been a Liberal Democrat, a Remain campaigner, a centrist candidate for the 2022 leadership election who pivoted to Thatcherite supply-side economics when she judged that was what the Conservative membership wanted. The pivot worked in winning the leadership. It then proved incompatible with governing.

The political management of the mini-budget was remarkably poor even by the standards of a government that lasted 44 days. Announcing the largest unfunded tax package in fifty years without OBR scrutiny, without adequate parliamentary preparation, without any attempt to build the institutional confidence that such a departure from fiscal convention would require: these were not the decisions of a political operation with a serious understanding of how British governance works.

The sacking of Kwasi Kwarteng and the reversal of most of the mini-budget confirmed what the markets had already concluded: the programme was not credible. Replacing the Chancellor while insisting the strategy was essentially unchanged was a political impossibility that Truss somehow attempted to maintain. The subsequent press conference, at which she was asked repeatedly why she had reversed her position and gave no coherent answer, illustrated the complete collapse of political authority.

The Weak rating across almost every category is appropriate and almost inevitably so. Forty-four days is not enough time to establish any record in most categories. What Truss demonstrated is that political ambition without adequate understanding of the context in which that ambition would be exercised can destroy a government before it has time to become one. The lesson for political practitioners is one about the limits of believing your own campaign rhetoric.