Notes · PoliticsUK · A-Levels

The Prime Minister and Cabinet

The executive is led by the Prime Minister and Cabinet, who together direct government, control the machine of state and command the majority in Parliament. This topic examines the powers of the PM (including the royal prerogative), the doctrines of collective and individual ministerial responsibility, the balance of power between the PM and Cabinet, the factors that strengthen or weaken a premier, and the debate over the 'presidentialisation' of the office.

6 sections~26 min reading time3 competenciesLevel Foundation 1 · Standard 3 · Advanced 2

T·0333 / 18

Exam profile

AO1 · Demonstrate knowledge of the powers of the PM and Cabinet, the prerogative and ministerial responsibilityAO2 · Analyse the factors that strengthen or weaken a PM and the PM-Cabinet relationshipAO3 · Evaluate how far the UK has 'prime-ministerial' or 'presidential' government, reaching a substantiated judgement

Operators:explain and analyseevaluateto what extentanalyse and evaluate this statementexamine

basic level

AS-Level expects the powers of the PM and Cabinet and the doctrines of ministerial responsibility.

higher level

The full A-Level requires sustained evaluation of prime-ministerial dominance and presidentialisation against the factors that constrain a premier, reaching a judgement.

Depth

Text

Contents · 6 sections

The Prime Minister and Cabinet

The structure and role of the executive#

FoundationAQA 7152/1 Section A: The Prime Minister and the executiveDfE GCE Politics subject content

The core executive

Fig. 1Power in UK government flows through the core-executive network centred on the PM and Cabinet.

The executive is the branch of government responsible for formulating and implementing policy - for running the country - and in the UK it is headed by the Prime Minister and Cabinet. It is useful to distinguish the 'core executive': the network of institutions and people at the centre of government, including the PM, the Cabinet and its committees, the Cabinet Office, the Prime Minister's Office at 10 Downing Street, senior ministers and their departments, and the senior civil service. Power in British government flows through this network rather than residing wholly in any single office, which is why the relationships within the core executive matter so much.

The Prime Minister is the head of government (the monarch remains head of state) and the dominant figure in the executive. The PM is not directly elected as PM; by convention the monarch appoints as Prime Minister the person able to command the confidence of the House of Commons - normally the leader of the largest party after an election. The PM chairs the Cabinet, appoints and dismisses ministers, sets the strategic direction of the government, represents the UK abroad, and answers for the government in Parliament and to the public. The office has grown greatly in resources and visibility over the last century.

The Cabinet is the committee of the most senior ministers - the secretaries of state heading the main departments, plus other key figures - which meets weekly and is, in constitutional theory, the supreme decision-making body of the executive. Cabinet's roles include settling the government's policy and priorities, resolving disputes between departments, coordinating the work of government, and providing collective political leadership. In practice much decision-making has moved to Cabinet committees, bilateral meetings between the PM and individual ministers, and informal groups, so the full Cabinet often ratifies decisions taken elsewhere - a shift central to the PM-versus-Cabinet debate.

Ministers and their departments carry out the detailed work of government. Ministers are drawn almost entirely from Parliament (mostly the Commons), embodying the fusion of powers, and are supported by a politically neutral, permanent civil service that advises ministers and administers policy. The convention of ministerial responsibility binds ministers to the government's collective decisions and makes them individually answerable for their departments. Understanding this structure - a powerful PM, a collective Cabinet whose real role is contested, and departmental ministers supported by the civil service - is the foundation for analysing where executive power actually lies.

Worked example

Locating power in the core executive

Explain why the concept of the 'core executive' is more useful than asking simply whether the PM or the Cabinet is in charge.

Define the core executive
The network of central institutions - PM, Cabinet, Cabinet Office, No. 10, senior ministers and the civil service - through which government power flows.
The problem with the binary
'PM vs Cabinet' assumes power sits in one place; in reality it is distributed and relational across the network.
Resources and dependence
Each actor has resources (the PM patronage and authority; ministers departmental expertise and support) and depends on the others - power is exchanged, not simply held.
Implication
A PM is powerful when able to mobilise the network's resources; a strong minister or a divided party can check even a dominant premier.

Result: The core-executive model shows power is distributed across a network of mutually dependent actors, so the realistic question is who can best mobilise the network's resources at a given moment - not a fixed answer of 'the PM' or 'the Cabinet'.

Typical mistakes

Saying the Prime Minister is 'elected' as PM by the public - the PM is appointed by the monarch as the person able to command the Commons.
Treating the full Cabinet as the real decision-maker, ignoring the shift to committees, bilaterals and informal groups.

Active revision

Explain and analyse three roles of the Cabinet in UK government. (9 marks)

Active recall

Recall the key points — then reveal.

Sources: GCE AS and A level subject content for politics (Department for Education)

The powers of the Prime Minister and the prerogative#

StandardAQA 7152/1 Section A: The Prime Minister and the executiveDfE GCE Politics subject content

The powers of the Prime Minister

Fig. 2The PM's powers flow from the prerogative, party leadership and control of the Cabinet and No. 10 - but each is conditional.

The Prime Minister's powers derive from several sources, and a strong answer distinguishes them. The most important formal source is the royal prerogative - the historic powers of the Crown now exercised in practice by the PM and ministers without the need for parliamentary approval. Through the prerogative the PM exercises patronage (appointing and dismissing ministers and recommending peerages and honours), directs foreign and defence policy, commands the armed forces, negotiates treaties, and controls the organisation and machinery of government. These are substantial powers wielded without a direct statutory or parliamentary source, which is why prerogative power is a recurring constitutional concern.

Patronage is the PM's single most potent lever over their own party and government. The power to appoint ministers - to make or break political careers - buys loyalty, allows the PM to build a supportive team and sideline rivals, and disciplines potential dissenters who hope for or fear losing office. The threat and reality of reshuffles and dismissals keep ministers dependent on the PM's favour. This power is not unlimited: a PM must usually accommodate senior colleagues and party factions, and may be constrained by the need to include powerful or popular figures, but patronage remains central to prime-ministerial authority.

The PM's other powers flow from their political and institutional position rather than the prerogative alone. As leader of the largest party the PM commands (usually) a Commons majority and can normally deliver their legislative programme; as chair of the Cabinet the PM sets its agenda, sums up its discussions and controls its committees, shaping what is decided; and as the government's chief public representative the PM dominates the media and, increasingly, personifies the government in the public mind. The growth of No. 10 and the Cabinet Office gives the modern PM a substantial personal machine to coordinate and drive government policy.

It is essential, however, to see these powers as conditional rather than absolute - the point the evaluative sections develop. Prerogative powers have been trimmed: the Fixed-term Parliaments Act 2011 removed the PM's power to time elections at will (before its repeal restored it in 2022), and a convention now expects the Commons to be consulted before major military action. Patronage depends on having authority to spend; agenda control depends on a compliant Cabinet; the majority depends on party unity. The PM's powers are formidable but rest on foundations - party support, a majority, authority, events - that can erode, so an accurate account presents them as powers that must be sustained, not simply possessed.

Worked example

Why patronage is the PM's key power

Explain how the power of patronage strengthens the Prime Minister.

Define patronage
The prerogative power to appoint, promote and dismiss ministers and to recommend peerages and honours.
Buys loyalty
MPs hoping for office, and ministers fearing dismissal, have strong incentives to support the PM - discipline flows from dependence.
Shapes the government
The PM can build a loyal team, promote allies, sideline rivals and reshuffle to renew authority or remove threats.
Note the limit
A PM must often accommodate senior or popular colleagues and factions; over-using dismissals can create resentful backbench enemies.

Result: Patronage strengthens the PM by making careers depend on prime-ministerial favour, buying loyalty and letting the PM shape the government - though it is constrained by the need to accommodate powerful colleagues and by the risk of creating enemies on the backbenches.

Typical mistakes

Presenting prerogative powers as unlimited, ignoring statutory and conventional constraints (e.g. consulting the Commons on military action).
Listing powers without noting that they depend on party unity, a majority and personal authority.

Active revision

Explain and analyse three powers of the Prime Minister. (9 marks)

Active recall

Recall the key points — then reveal.

Sources: AQA AS and A-level Politics (7152) specification (AQA)

Ministerial responsibility: collective and individual#

StandardAQA 7152/1 Section A: The Prime Minister and the executiveDfE GCE Politics subject content

Collective versus individual ministerial responsibility

Fig. 3Both conventions make the executive accountable to Parliament; collective binds the whole government, individual binds each minister.

Ministerial responsibility is the set of conventions that make the executive accountable to Parliament, and it comes in two forms that must be kept distinct. Collective ministerial responsibility is the convention that all members of the government publicly support government policy, or resign; that Cabinet discussions remain confidential (so the government presents a united front); and that the government as a whole is collectively accountable to Parliament and stands or falls together on a confidence vote. Its rationale is to give the government unity, secrecy of deliberation and the strength that comes from speaking with one voice - and it is a powerful disciplinary tool for the PM, since a minister who cannot support policy must leave.

Collective responsibility is a strong convention but not an absolute one, and its limits are worth noting. Ministers who disagree publicly are expected to resign (as ministers have done over major policy differences), and the convention allows a departing minister to explain their disagreement in a resignation statement. It has occasionally been formally suspended - most notably to allow ministers to campaign on opposite sides in EU referendums - and 'leaks' from Cabinet breach its confidentiality in practice. The convention binds the 'payroll vote' to the government in Parliament, reinforcing executive dominance of the Commons, which is why it matters beyond the Cabinet room.

Individual ministerial responsibility is the separate convention that each minister is personally accountable to Parliament for the conduct and policies of their department and for their own conduct. It has two dimensions: role responsibility (a minister answers to Parliament for their department, must explain and account for what it does, and may be expected to resign for serious personal or departmental failings) and personal responsibility (a minister must resign for serious personal misconduct or for misleading Parliament). The Ministerial Code sets out the standards ministers are expected to observe. This convention is meant to ensure that someone is answerable for every part of government.

In practice individual responsibility has weakened, and evaluating it is a common exam demand. The distinction between policy failures (for which resignation is now rarely offered) and personal misconduct (for which it is more likely) has blurred, and ministers increasingly distinguish 'accountability' (a duty to explain, which survives) from 'responsibility' (a duty to resign, which is often avoided), blaming officials or agencies for operational failings. Whether a minister actually resigns often depends less on the constitutional convention than on political factors - the support of the PM, the mood of the party and the press, and the minister's own standing. The strongest answers therefore treat ministerial responsibility as a genuine but eroded and politically contingent mechanism of accountability, not a reliable rule.

Worked example

Has individual ministerial responsibility weakened?

Assess whether the convention of individual ministerial responsibility still ensures accountability.

State the convention
Ministers are accountable to Parliament for their department and personal conduct, and may be expected to resign for serious failings.
The accountability/responsibility split
Ministers now distinguish a surviving duty to explain (accountability) from an avoided duty to resign (responsibility), blaming officials or agencies for operational failures.
Political contingency
Whether a minister resigns depends on the PM's support, the party's mood and the press - politics, not just the convention.
The surviving core
Resignation is still likely for serious personal misconduct or for misleading Parliament, and ministers must still answer to select committees.
Judgement
Conclude that the convention still enforces answerability but has weakened as a resignation rule, so accountability now rests as much on politics as on constitutional obligation.

Result: Individual ministerial responsibility survives as a duty to explain and account, and still forces resignation for serious personal misconduct, but has weakened as a rule requiring resignation for policy or departmental failure - so it delivers accountability contingently, depending on political circumstances as much as on the convention.

Typical mistakes

Confusing collective responsibility (support policy or resign; Cabinet unity) with individual responsibility (a minister answers for their department).
Assuming ministers always resign for departmental failings - resignation is now often avoided and depends on politics, not just convention.

Active revision

Explain and analyse three features of the convention of collective ministerial responsibility. (9 marks)

Active recall

Recall the key points — then reveal.

Sources: GCE AS and A level subject content for politics (Department for Education)

The PM and Cabinet: who dominates?#

AdvancedAQA 7152/1 Section A: The Prime Minister and the executiveDfE GCE Politics subject content

Cabinet government versus prime-ministerial government

Fig. 4The two models mark the ends of a spectrum; the real balance shifts with the majority, party unity and events.

The central evaluative question is whether the UK has cabinet government or prime-ministerial government, and a strong answer sets out the two models before showing that the reality lies between them. The traditional model is cabinet government: the doctrine that the Cabinet, as a collective body, is the supreme decision-making authority of the executive, with the PM as 'first among equals' (primus inter pares) - the chair of a collegial body rather than its master. On this view major decisions are taken collectively in Cabinet, the PM must carry colleagues, and collective responsibility expresses a genuinely collective process.

The rival model is prime-ministerial government: the argument that power has drifted decisively to the PM, who now dominates the executive and reduces the Cabinet to a body that ratifies rather than makes decisions. Its supporting evidence is substantial - the PM's patronage over ministers' careers, control of the Cabinet agenda and its committees, the growth of No. 10 as a personal command centre, the practice of taking decisions in bilateral meetings and informal groups ('sofa government') rather than full Cabinet, and the PM's dominance of the media and personification of the government. On this view the Cabinet has become largely a rubber stamp and 'first among equals' is a polite fiction.

The evidence, however, does not point all one way, and this is where analysis earns marks. Cabinet and senior colleagues retain real power: a PM who loses the confidence of the Cabinet or of powerful ministers can be forced to change course or even out of office, as the fate of premiers brought down by ministerial resignations or Cabinet revolts shows; strong 'big beast' ministers with their own bases of support must be accommodated; a divided party or a Cabinet in open dissent can paralyse a premier. The PM's dominance depends on resources - authority, a united party, a secure majority, favourable events - that can drain away, at which point the Cabinet and colleagues reassert themselves.

The most convincing account, and the judgement a top answer reaches, is that neither pure model fits: power in the core executive is relational and variable, so the balance between PM and Cabinet shifts with circumstances and personalities. A PM with a large majority, a united party, high authority and a run of success can dominate and approach the prime-ministerial model; a PM with a small majority, a divided party, low standing and adverse events is thrown back on the collective, and the Cabinet constrains them. The realistic conclusion is that the UK has neither permanent cabinet government nor permanent prime-ministerial government but a fluctuating balance in which the PM is usually dominant but always dependent on the support of colleagues - a dependence that can, and periodically does, bring even the most dominant premier down.

Worked example

Model essay plan: prime-ministerial or cabinet government?

Plan a 25-mark answer evaluating whether the UK has prime-ministerial rather than cabinet government.

Introduction and thesis
Define the two models; signal a judgement - the balance is variable, with the PM usually dominant but always dependent. Reject a fixed answer.
The prime-ministerial case
Patronage, agenda and committee control, the growth of No. 10, bilaterals/'sofa government', media dominance - Cabinet as rubber stamp.
The cabinet-government case
PMs forced out by Cabinet revolts and ministerial resignations; 'big beast' ministers who must be accommodated; a divided party or dissenting Cabinet paralyses a premier.
Introduce the contingency
PM dominance depends on resources - a majority, party unity, authority, events - which can drain away, restoring collective constraint.
Judgement
Conclude that the UK has neither permanent model but a fluctuating balance: the PM is usually dominant yet always dependent on colleagues' support, which can bring even a dominant premier down.

Result: A top-band plan weighs the prime-ministerial evidence (patronage, No. 10, sofa government) against the cabinet-government evidence (premiers ousted by their colleagues, big-beast ministers) and judges that the balance is variable and relational - the PM usually dominant but always dependent, so neither pure model holds.

Typical mistakes

Concluding flatly that the PM 'always' dominates, ignoring premiers forced out by Cabinet revolts and ministerial resignations.
Treating cabinet and prime-ministerial government as fixed alternatives rather than points on a shifting spectrum.

Active revision

Evaluate the view that the UK now has prime-ministerial rather than cabinet government. (25 marks)

Active recall

Recall the key points — then reveal.

Sources: GCE AS and A level subject content for politics (Department for Education)

Factors affecting prime-ministerial power#

StandardAQA 7152/1 Section A: The Prime Minister and the executiveDfE GCE Politics subject content

Factors affecting prime-ministerial power

Fig. 5Prime-ministerial power is conditional on a cluster of factors that vary over time, producing strong and weak premiers.

Because prime-ministerial power is conditional, the ability to explain the factors that strengthen or weaken a premier is central to this topic, and they can be grouped for clarity. The first and often decisive factor is the electoral mandate and the size of the parliamentary majority. A PM who has just won a general election with a large majority enjoys authority, a personal mandate and the near-certainty of getting legislation through, and is at the height of their power; a PM with a small majority, or leading a minority or coalition government, must bargain constantly and can be defeated, and is correspondingly weaker. A PM who takes office mid-term without their own election victory may lack the same authority.

The second key factor is party unity and management. A PM whose party is united behind them can dominate; a PM presiding over a divided party, with organised factions and rebellious backbenchers, is constantly constrained and may be unable to deliver their programme even with a nominal majority. Party management - keeping the parliamentary party loyal, managing its factions, and retaining the support of MPs who can ultimately remove a leader - is therefore a continuous test of a premier, and the loss of party confidence is the most common route to a PM's downfall.

The third cluster of factors is circumstance and performance. The state of the economy hugely affects a PM's standing - economic success strengthens, recession or crisis weakens. Events and crises can make or break a premier: a well-handled crisis can enhance authority, a mishandled one can destroy it. The support or opposition of the Cabinet and senior colleagues matters - a loyal Cabinet strengthens the PM, resignations and revolts weaken them. Public opinion and the media shape a PM's authority, since a popular PM is an electoral asset the party will back, while an unpopular one becomes a liability the party may discard.

Finally, personality, skill and the length of time in office affect prime-ministerial power. A PM with strong leadership skills, communication ability and political judgement can maximise the potential of the office, while a weaker or less skilful leader may fail to exploit it. Time in office is double-edged: experience and accumulated authority can strengthen a PM, but long tenures tend to accumulate enemies, disappointments and a sense of staleness that erodes support. Evaluating any premiership means weighing these factors together - and the strongest answers show that the same office produces 'strong' and 'weak' premiers precisely because these underlying conditions vary, so prime-ministerial power is a variable to be explained, not a constant to be assumed.

Worked example

Explaining a shift from a strong to a weak premiership

Explain how a Prime Minister who begins strong can become weak.

The strong starting point
A fresh election victory with a large majority gives mandate, authority and command of the Commons - the height of prime-ministerial power.
Party unity erodes
Factions form, backbenchers rebel, and the PM's control of the parliamentary party weakens - the majority becomes unreliable.
Circumstance turns
Economic difficulty, a mishandled crisis or a run of unpopularity drains authority and makes the PM an electoral liability.
Colleagues withdraw support
Cabinet dissent and ministerial resignations signal lost confidence, and the party begins to consider removing the leader.
Result
The same office now produces a weak premier - the factors that underpinned strength have reversed.

Result: A premiership weakens as its underlying conditions reverse: party unity fractures, the economy or events turn, public support falls and colleagues withdraw confidence - showing that prime-ministerial power is a variable dependent on factors that change over time.

Typical mistakes

Treating prime-ministerial power as fixed by the office, rather than as varying with the majority, party unity, the economy and events.
Listing factors without linking them to the resulting strength or weakness of a premier.

Active revision

Explain and analyse three factors that affect the power of the Prime Minister. (9 marks)

Active recall

Recall the key points — then reveal.

Sources: AQA AS and A-level Politics (7152) specification (AQA)

Presidentialisation: how far has the premiership changed?#

AdvancedAQA 7152/1 Section A: The Prime Minister and the executiveDfE GCE Politics subject content

Presidentialisation: style versus substance

Fig. 6The premiership has been presidentialised in style and resources, but its parliamentary substance - dependence on the party - remains.

The 'presidentialisation' thesis argues that the office of Prime Minister has come to resemble a presidency, and evaluating it is a demanding synoptic essay that connects this topic to the wider constitution. The thesis, associated with writers such as Michael Foley (who spoke of 'spatial leadership' and the 'British presidency') and Michael Heffernan, holds that the modern PM increasingly acts and is treated as a president: campaigning on a personalised mandate, standing apart from and above the party and Cabinet, dominating the media and personifying the government, and directing policy from a growing personal office. The evidence includes the increasing focus of elections on party leaders, the growth of No. 10 and the Cabinet Office as a quasi-presidential machine, and the tendency of PMs to bypass the Cabinet.

The supporting arguments deserve careful statement. Elections have become more leader-focused, with the media and the parties themselves presenting the choice as one between rival potential PMs, so that a PM can claim a personal mandate independent of the party - a presidential feature. The PM's dominance of the broadcast media and of summitry and foreign policy makes them the public face of the nation in a way that resembles a head of state. The expansion of the PM's personal support machinery (special advisers, policy units, strategic communications) gives the modern premier resources for personal command that earlier PMs lacked, and the practice of 'sofa government' concentrates decisions around the PM and a small entourage.

The counter-arguments, which a balanced answer must give full weight, expose the limits of the analogy. Structurally, the PM is not a president: the UK has a fusion, not a separation, of powers, so the PM sits inside the legislature and depends on its confidence, whereas a president is separately elected and secure for a fixed term. The PM has no personal electoral mandate - they are the leader of a party that wins a parliamentary majority and can be removed by that party at any time, without an election, as ousted premiers show; a US president cannot be removed by their own party. The PM must carry the Cabinet and the parliamentary party, is constrained by collective responsibility, and can be constrained or destroyed by colleagues - dependences no president faces. Presidentialisation describes a change in style and presentation more than a change in the constitutional substance of the office.

The judgement a strong answer reaches distinguishes appearance from reality. There has been a genuine 'presidentialisation' of the PM's public role, media presentation and personal machinery - the style of British political leadership has become more personalised and leader-centred. But the constitutional substance remains parliamentary: the PM's power still rests on, and is limited by, party support and Commons confidence, not on a separate presidential mandate, and the ease with which parties depose their leaders is the decisive disproof of a true presidency. The best conclusion is therefore that the premiership has been presidentialised in appearance and resources but not in constitutional foundation - the PM remains a parliamentary leader dependent on their party, which is precisely why 'presidentialisation' is a change of degree and style, not of the fundamental nature of the office.

Worked example

Model essay plan: has the premiership become presidential?

Plan a 25-mark answer evaluating whether the office of Prime Minister has become presidential.

Introduction and thesis
Explain the thesis (Foley/Heffernan); signal a judgement - presidentialisation in style and resources but not in constitutional substance.
The case for
Leader-focused elections and personal mandates; media and foreign-policy dominance; the growth of No. 10; 'sofa government' bypassing Cabinet.
The case against
Fusion not separation of powers - the PM sits in and depends on Parliament; no personal or fixed-term mandate; removable by the party at any time; bound by collective responsibility and colleagues.
Style vs substance
The change is in presentation, personalisation and resources, not in the constitutional foundation of the office, which remains parliamentary.
Judgement
Conclude that the premiership is presidentialised in appearance but not in substance - the PM remains a party leader dependent on Commons confidence, decisively unlike a president who is separately elected and secure for a fixed term.

Result: A top-band plan credits the presidentialisation of style, media role and personal machinery, but uses the structural facts (fusion of powers, no fixed-term personal mandate, removability by the party) to judge that the office's constitutional substance remains parliamentary - a change of degree and style, not of nature.

Typical mistakes

Accepting presidentialisation uncritically, ignoring that the PM has no fixed term or personal mandate and can be removed by their own party.
Failing to distinguish the change in style and presentation (real) from a change in the constitutional nature of the office (limited).

Active revision

'The office of Prime Minister has become presidential.' Analyse and evaluate this statement. (25 marks)

Active recall

Recall the key points — then reveal.

Sources: GCE AS and A level subject content for politics (Department for Education)

References & sources

Sources

Department for Education

GCE AS and A level subject content for politics

AQA

AQA AS and A-level Politics (7152) specification

The Prime Minister and Cabinet

6 sections~26 min reading time3 competenciesLevel Foundation 1 · Standard 3 · Advanced 2

The Prime Minister and Cabinet

Key points

Locating power in the core executive

Key points

Why patronage is the PM's key power

Key points

Has individual ministerial responsibility weakened?

Key points

Model essay plan: prime-ministerial or cabinet government?

Key points

Explaining a shift from a strong to a weak premiership

Key points

Model essay plan: has the premiership become presidential?

Sources

The Prime Minister and Cabinet

Key points

Locating power in the core executive

Key points

Why patronage is the PM's key power

Key points

Has individual ministerial responsibility weakened?

Key points

Model essay plan: prime-ministerial or cabinet government?

Key points

Explaining a shift from a strong to a weak premiership

Key points

Model essay plan: has the premiership become presidential?

Sources