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This lesson examines how decisions are really made at the centre of UK government. While the full Cabinet is the formal collective decision-making body, much of the substantive work happens elsewhere — in Cabinet committees, bilateral meetings between the PM and individual ministers, and informal networks of trusted advisers. For Edexcel Component 2 (Paper 2: UK Government), Section A, understanding these mechanisms is essential for evaluating the distribution of power within the Executive and, in particular, for assessing the claim that decision-making has become excessively centralised and informal at the expense of collective scrutiny.
Cabinet committees are formal sub-groups of the Cabinet that handle specific policy areas. They are established by the PM, who also sets their membership, chairs, and terms of reference. Because the PM controls their creation and composition, the committee system is itself an instrument of prime-ministerial power: by deciding which committees exist and who sits on them, the PM shapes where and how decisions are taken.
Illustrative examples of Cabinet committees include the National Security Council (which coordinates security, defence, and foreign policy), committees dealing with economic affairs, and dedicated committees created to manage major issues such as the UK's exit from the EU or the response to the COVID-19 pandemic. The precise structure changes from government to government, but the principle is constant.
Committees come in different forms. Some are standing committees that deal with continuing areas of business; others are ad hoc bodies created to handle a specific issue and wound up once it is resolved. There may also be sub-committees reporting to a parent committee. A new PM typically reviews and reshapes the committee structure on taking office, which is itself a revealing exercise: the committees a government creates signal its priorities, and the choice of who chairs them signals where power lies. The system is, in short, both a practical tool for organising business and a map of the government's political architecture.
This last point is significant for accountability. Publishing the structure and membership of committees provides a degree of transparency about where decisions are taken, which is more than can be said for purely informal sofa-style methods. In that sense, the committee system — though controlled by the PM — is more accountable than inner-circle government, because there is at least a formal record of which body considered a matter and who sat on it. Committees thus occupy a middle position between full Cabinet (the most transparent and collective forum) and informal inner circles (the least), combining some of the efficiency of small-group decision-making with some of the formality and record-keeping of collective government.
Cabinet committees are, in a real sense, the engine room of government policy-making. The volume and detail of modern government business make it impossible for a body of twenty or more ministers, meeting briefly once a week, to take every decision; the committee system distributes that workload. But this has important consequences for the distribution of power, prompting three linked concerns:
It is important to be balanced here: committees are a legitimate and necessary feature of modern government, not in themselves an abuse. The concern is not that committees exist but that, combined with informal methods, they can hollow out the deliberative role of the Cabinet as a whole.
The committee system is, at root, a response to overload. The scope of modern government — running the economy, the NHS, the schools system, defence, foreign affairs, welfare, and much else — generates a volume of decisions that no single weekly meeting of twenty-odd ministers could possibly process. Delegating detailed work to committees of the relevant departmental ministers allows decisions to be taken by those with the expertise and responsibility, frees the full Cabinet to focus on the most strategic questions, and ensures that cross-departmental issues are coordinated. In this sense the committee system is a rational and necessary division of labour, not a sinister device.
The constitutional question is therefore not whether committees should exist but who controls them and how transparent they are. Because the PM sets the committee structure, membership, and chairs, the system can be used either neutrally (to organise business efficiently) or strategically (to ensure favourable outcomes by stacking key committees with allies and excluding likely dissenters). The same mechanism that makes government workable can also be turned into a tool of prime-ministerial dominance, which is why evaluating the committee system requires looking at how a particular PM has used it rather than condemning or defending committees in the abstract.
The National Security Council illustrates both the value and the politics of the committee system. Established to bring together the senior ministers, officials, and security and intelligence chiefs responsible for national security, it provides a formal, regular forum for coordinated decision-making on defence, foreign affairs, and security — precisely the kind of structured collective process whose absence the Butler Review had criticised in the run-up to the Iraq War. Its creation can be read as a deliberate move towards more formal collective scrutiny of grave decisions. Yet even here the PM chairs the body and shapes its agenda, so the committee remains an instrument through which prime-ministerial leadership is exercised, not a check that operates independently of the PM.
The phrase "sofa government" became closely associated with Tony Blair's premiership (1997–2007) and captures a style of decision-making that bypassed formal Cabinet and committee structures in favour of informal, small-group, and bilateral methods:
The appeal of this style is obvious: it is fast, flexible, and allows a PM to drive a clear agenda without the friction of formal collective machinery. The danger is equally clear: it concentrates power, reduces the range of perspectives brought to bear on a decision, and weakens the records and challenge that formal processes provide.
It is worth understanding why a PM like Blair adopted such a style, because the reasons are revealing about the modern premiership. First, a PM with a very large majority and a compliant Cabinet has little need to bargain collectively: they can drive their agenda directly. Second, the personalisation of politics and the media's focus on the PM encourage leaders to govern as dominant individuals rather than as chairs of a committee. Third, informal methods avoid leaks: the larger and more formal the meeting, the more likely that disagreements will reach the press, so a PM keen to control the message restricts genuine discussion to a trusted few. Fourth, modern government often demands speed — in crises, in foreign affairs, in responding to fast-moving events — which formal collective machinery is poorly suited to provide. Sofa government, on this reading, is not simply a personal quirk but a predictable response to the incentives facing a powerful modern PM. That, however, makes the constitutional objection more rather than less important: if the structural pressures all push towards informality, the safeguards that require formal scrutiny of grave decisions become correspondingly vital.
The decision to commit British forces to the Iraq War in 2003 is the case study most associated with the dangers of informal decision-making. Critics argue that the momentous decision to go to war was shaped through bilateral discussions and a small circle around the PM, rather than through sustained, properly recorded collective deliberation in Cabinet, and that this reduced the challenge and scrutiny the decision should have received. The Butler Review's criticism of the informality of the process, and the later and more wide-ranging Iraq Inquiry (the Chilcot Inquiry, which reported in 2016), both fed a broader critique that the most serious decision a government can take — sending the armed forces into combat — had not been subjected to the rigorous collective process it demanded. Whatever one's view of the merits of the war itself, Iraq crystallised the constitutional argument that informality, however convenient, is inappropriate for decisions of the gravest kind.
The most influential critique of informal decision-making came from the Butler Review of 2004 (formally an inquiry into the intelligence on weapons of mass destruction in the context of the Iraq War). While its central subject was intelligence, the Review also examined how the relevant decisions had been taken, and it expressed concern about the informality of the process. In substance, the Review's findings on decision-making can be summarised as follows:
The Butler Review's significance for this topic is that it gave authoritative, official weight to the constitutional objection to "sofa government": that great decisions of state — above all questions of war and peace — should be subject to proper collective scrutiny rather than settled informally among a small circle.
(Candidates should describe the Butler Review's conclusions in their own words and attribute them carefully as the findings of the Review, rather than relying on a precise verbatim quotation.)
Every PM relies, to some degree, on an inner circle — a small group of trusted ministers, advisers, and sometimes personal confidants who have the PM's ear and disproportionate influence over key decisions. The older term "kitchen cabinet" conveys the same idea: an informal group, operating outside the formal Cabinet, where real influence is concentrated. Such circles typically include both political appointees (special advisers, the chief of staff, the director of communications) and a handful of senior ministerial allies.
The existence of such circles is, in one sense, entirely natural. No individual can govern alone, and a PM facing relentless pressure and a flood of decisions inevitably comes to rely on a few people whose judgement they trust. The inner circle provides companionship, candour, and continuity in a job of extraordinary isolation and strain. The constitutional difficulty arises only when the informal circle supplants the formal Cabinet — when the people who really decide are not the elected ministers collectively accountable to Parliament, but a private network whose membership and influence are determined solely by the PM's favour. The question for analysis, therefore, is not whether a PM has an inner circle (they all do) but whether that circle has become the true seat of government, displacing the collective body the constitution assumes to be in charge.
| PM | Notable members of the inner circle | Significance |
|---|---|---|
| Thatcher | Senior foreign-affairs and press advisers; favoured ("dry") Cabinet allies | Thatcher leaned on a tight circle and increasingly marginalised Cabinet colleagues who disagreed with her direction |
| Blair | His chief of staff, director of communications, and key political allies | The classic "sofa government" model, with major decisions shaped outside formal collective processes |
| Cameron | His Chancellor and a small group of senior advisers | Cameron and his Chancellor operated as a close dual partnership at the centre of the government |
| Johnson | His chief adviser (initially Dominic Cummings) and senior No. 10 aides | Cummings in particular exercised exceptional influence over strategy and appointments before his departure in late 2020 |
| Starmer | His chief of staff and a tight team of senior allies | Despite emphasising a return to formal Cabinet government, Starmer relies on a close inner team, illustrating that even reform-minded PMs depend on trusted circles |
These examples show that informal inner circles are a permanent feature of British government, not the invention of any single PM. What varies is how dominant the circle becomes relative to the formal Cabinet, and how far it displaces collective processes.
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