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This lesson examines the structure of the UK Executive — the branch of government responsible for implementing policy and running the country on a day-to-day basis. The Executive consists of the Prime Minister, the Cabinet, junior ministers, and the Civil Service. Understanding how the Executive is organised and how power is distributed within it is essential for A-Level Politics.
The Executive (also called "the government") is the branch of government that makes and implements policy. In the UK's system of fused powers, the Executive is drawn from and sits in the Legislature (Parliament). The PM and most senior ministers are MPs; some are peers in the House of Lords.
The Executive should be distinguished from:
Political scientists use the term "core executive" to describe the centre of UK government — the network of institutions and individuals at the heart of the policy-making process. The core executive includes:
| Component | Role |
|---|---|
| The Prime Minister | Head of government; chairs Cabinet; sets the overall direction of policy |
| The Cabinet | Senior ministers who collectively decide major policy issues |
| Cabinet committees | Sub-groups of Cabinet that handle specific policy areas |
| The Cabinet Office | The civil service department that supports the PM and coordinates government business |
| The PM's Office (No. 10) | The PM's personal staff, including political advisers, press officers, and the PM's Principal Private Secretary |
| The Treasury | The most powerful government department; controls public spending |
| Special advisers (SpAds) | Politically appointed advisers who support ministers |
The PM is the head of government (not the head of state — that is the Monarch). The PM's position rests on three foundations:
The PM's formal title is "First Lord of the Treasury" — there is no statute that defines the role of Prime Minister. The PM's power depends on political circumstances, personality, and the size of their parliamentary majority.
The Cabinet is the senior decision-making body of government. It consists of approximately 20–25 senior ministers, each heading a government department (e.g. the Chancellor of the Exchequer, the Home Secretary, the Foreign Secretary, the Defence Secretary).
Cabinet traditionally meets weekly (usually on a Tuesday morning) for approximately 60–90 minutes. However, the importance of full Cabinet meetings has declined:
Below Cabinet level, there are approximately 90 junior ministers:
| Level | Title | Role |
|---|---|---|
| Minister of State | Senior junior minister | Responsible for specific policy areas within a department |
| Parliamentary Under-Secretary of State | Junior minister | Assists the Secretary of State with departmental duties |
| Parliamentary Private Secretary (PPS) | Unpaid, unofficial | Acts as a link between the minister and backbenchers |
Together with the PM and Cabinet, these ministers form the "government payroll vote" — the approximately 100 MPs (and some peers) who hold government positions and are expected to vote with the government.
The Civil Service is the permanent, politically neutral bureaucracy that administers government policy. It consists of approximately 500,000 officials, ranging from senior mandarins to administrative staff.
| Principle | Meaning |
|---|---|
| Permanence | Civil servants remain in post regardless of which party is in government |
| Neutrality | Civil servants do not have political affiliations and serve the government of the day impartially |
| Anonymity | Civil servants do not speak publicly on policy; ministers take public responsibility |
| Meritocracy | Appointment and promotion are based on ability, not political connections |
Special advisers are politically appointed staff who work alongside ministers. Unlike civil servants, SpAds are political appointees who share the minister's political outlook. They provide:
Controversy: The role of SpAds has expanded significantly. Critics argue they have too much influence and undermine the neutrality of the Civil Service. Dominic Cummings, Boris Johnson's chief adviser (2019–2020), became one of the most powerful and controversial SpAds in recent history, clashing openly with civil servants and driving a radical reform agenda.
The relationship between these elements of the Executive is constantly evolving:
Case Study: Boris Johnson and Dominic Cummings. Johnson's appointment of Cummings as his chief adviser in 2019 represented an attempt to centralise power in No. 10 and bypass traditional Civil Service structures. Cummings openly criticised the Civil Service as inefficient and resistant to change. His departure in November 2020 — following a power struggle within No. 10 — demonstrated the limits of this approach.
Exam Tip: Always link the formal structure of the Executive to how it works in practice. The formal role of Cabinet (collective decision-making) often differs from the reality (PM dominance). Use specific examples to illustrate this gap.