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The British executive: the Crown, the monarch, the Prime Minister and the Cabinet

Political Science - Major World Governments · Unit I · Topic 2 of 17 · 6 min read

The nominal executive and the political executive in Britain: why the monarchy survives, King versus Crown, and the selection, powers and position of the Prime Minister and Cabinet.

On this page
  1. 1. The monarch: the nominal head of state
  2. 2. Why the monarchy survives: the justification
  3. 3. The King and the Crown
  4. 4. The political executive: history and structure
  5. 5. The Prime Minister: selection
  6. 6. Powers and functions of the Prime Minister
  7. 7. The position of the Prime Minister
  8. How this is examined
Cases checked to exist. Read the judgment before quoting a holding.

Every case cited here has been checked to exist — the citation resolves and names the right parties. The propositions attributed to each case have not been verified line by line against the judgment. Case names link through to the full judgment: read it before quoting a holding in an examination answer, and never carry a proposition from notes into court on trust.

The examinable core. Britain has a nominal executive (the monarch) and a real one (the Prime Minister and Cabinet). January 2026 set the selection, powers and functions of the British Prime Minister as a full 16-mark question; February 2025 set the Crown as a short note. Keep the King and the Crown apart, and know the descriptions of the Prime Minister by name.

1. The monarch: the nominal head of state

Britain is a hereditary constitutional monarchy. Succession is governed by the Act of Settlement 1701 as amended by the Succession to the Crown Act 2013, which ended male preference for those born after October 2011. The present sovereign is King Charles III, who succeeded on 8 September 2022.

Functions in law. Almost every act of state is done in the name of the monarch: summoning, proroguing and dissolving Parliament; giving royal assent; appointing the Prime Minister and, on advice, other ministers, judges, bishops and ambassadors; declaring war and making treaties; granting pardons and honours; and opening Parliament with the King’s Speech, which is written by the government.

Functions in practice. Each of these is exercised on ministerial advice. Bagehot, in The English Constitution (1867), said the sovereign retains three rights: the right to be consulted, the right to encourage and the right to warn. The residual personal discretion is narrow: choosing a Prime Minister where no party has a clear majority, and in theory refusing a dissolution.

2. Why the monarchy survives: the justification

Critics reply that a hereditary office is undemocratic and costly. The standard answer is that a monarch with no real power poses no democratic threat, and that the alternative, an elected president, would bring politics into the headship of state.

3. The King and the Crown

The King is the person who holds the throne at a given time. The Crown is the institution: the sum of governmental powers exercised in the name of the monarch, in practice by ministers, civil servants and the armed forces. Four consequences follow:

  1. The King is mortal; the Crown never dies (“The King is dead, long live the King”).
  2. The King acts on advice; the Crown acts through ministers who are responsible to Parliament.
  3. “The King can do no wrong”: the monarch personally cannot be sued, but since the Crown Proceedings Act 1947 the Crown (the government) can be sued in contract and tort.
  4. The royal prerogative belongs to the Crown and is used almost wholly by the government.

4. The political executive: history and structure

The Cabinet grew out of the Privy Council. After 1714 George I, who spoke little English, stopped attending meetings of his ministers. Sir Robert Walpole (1721–42) presided instead and is treated as the first Prime Minister. The office had no statutory basis until the twentieth century and still rests mainly on convention.

Ministry (Council of Ministers)Cabinet
All ministers: Cabinet ministers, ministers of state, junior ministers, whips — over a hundredThe inner body of senior ministers, about twenty
Does not meet as a bodyMeets regularly, takes collective decisions
Bound by collective responsibility for government policyMakes that policy

Conventions of Cabinet government. Ministers must be members of one of the Houses; collective responsibility (ministers publicly support Cabinet decisions or resign); individual responsibility for departments; secrecy of Cabinet proceedings; leadership of the Prime Minister; and political homogeneity (ministers come from the majority party, save in coalitions such as 2010–15).

5. The Prime Minister: selection

The monarch appoints as Prime Minister the person most likely to command the confidence of the House of Commons. After a general election this is the leader of the party with a majority. Each party chooses its own leader (Conservative MPs shortlist and party members decide; Labour members elect from candidates nominated by MPs), so when the leader of the governing party changes mid-term, the new leader becomes Prime Minister without a general election, as happened in 2016, 2019 and 2022. By convention the Prime Minister sits in the Commons: Lord Home renounced his peerage in 1963 to do so.

Tenure. No fixed term. The Prime Minister holds office while the Commons majority holds. Under the Dissolution and Calling of Parliament Act 2022, which repealed the Fixed-term Parliaments Act 2011, the power to request a dissolution has returned to the Prime Minister, and a Parliament dissolves automatically five years after it first met.

6. Powers and functions of the Prime Minister

  1. Forms the government. Chooses, reshuffles and dismisses ministers; allocates portfolios.
  2. Leader of the Cabinet. Fixes the agenda, chairs meetings, sums up the decision, controls committees.
  3. Leader of the House majority. The government’s programme passes because the Prime Minister leads the majority party and its whips.
  4. Link with the Crown. Advises the King and keeps him informed in weekly audiences.
  5. Dissolution. Advises the King on the date of a general election.
  6. Patronage. Recommends senior appointments, peerages and honours.
  7. Head of the civil service as Minister for the Civil Service.
  8. Foreign policy and defence. Represents Britain at summits; under the prerogative, commits forces.
  9. Leader of the nation in crisis, and chief spokesman of government policy at Prime Minister’s Questions.

7. The position of the Prime Minister

The classic descriptions: primus inter pares, first among equals; John Morley called the Prime Minister “the keystone of the Cabinet arch”; Ivor Jennings, “a sun around which planets revolve.” Many modern writers speak of prime-ministerial government (R.H.S. Crossman, John Mackintosh), arguing that the office has outgrown the Cabinet. The limits remain real: the party can remove its leader (Thatcher in 1990, Johnson in 2022), the Cabinet can resist, and the Commons can withdraw confidence.

Bagehot on the Cabinet. He called the Cabinet “a hyphen which joins, a buckle which fastens” the legislative part of the state to the executive. Quote it in any answer on the fusion of powers.

How this is examined

January 2026 asked “Explain the selection, powers and functions of the British Prime Minister” for 16 marks. Organise it as selection, tenure, a numbered list of powers, and a closing paragraph on position with the named descriptions. February 2025 set “The Crown” as a 6-mark short note: define it, separate it from the King, and give two lines on functions. Older papers ask for the justification of monarchy in Britain; use the list in section 2 with Bagehot.

Now try the real questions: Political Science - Major World Governments past question papers.