You are viewing a free preview of this lesson.
Subscribe to unlock all 10 lessons in this course and every other course on LearningBro.
This lesson compares federalism and devolution as two distinct models for distributing power between central and regional levels of government, and applies the comparison to the central question of where the UK now sits. The distinction matters enormously for Component 2 of Edexcel A-Level Politics, because almost every question about devolution, sovereignty and the future of the Union turns on it. The decisive difference is deceptively simple: under devolution, powers are delegated from the centre while sovereignty is retained there, so the arrangement is in principle reversible; under federalism, powers are constitutionally entrenched and divided between two levels of government, so that neither level can unilaterally abolish the other. Grasping that single contrast — delegation versus entrenchment, reversibility versus protection — is the key to evaluating whether the UK has become "quasi-federal" and whether it should move to a formally federal model.
| Model | Definition | Examples |
|---|---|---|
| Federalism | Power is constitutionally divided between central (federal) and regional (state) governments. Each level has its own protected powers and neither can abolish the other. | USA, Germany, Canada, Australia |
| Devolution | Power is delegated from the centre to regional bodies. The centre retains sovereignty and can, in principle, reclaim the power. | UK (Scotland, Wales, NI), Spain |
| Unitary state | All sovereignty resides with the central government. Regional bodies, if they exist, act as agents of the centre. | France (traditionally), Japan |
The cleanest way to fix the distinction in mind is to ask one question: where does sovereignty lie, and can the centre take the power back? In a federal system the answer is that sovereignty is shared and the centre cannot unilaterally reclaim regional powers, because they are protected by a higher-law constitution. Under devolution the answer is that sovereignty remains at the centre, which could in law reclaim or even abolish the regional bodies, however politically unthinkable that may be. Everything else — symmetry, the role of a constitutional court, the method of amendment — follows from this foundational difference.
| Feature | Federalism | Devolution |
|---|---|---|
| Source of power | A higher-law constitution divides power | The central government delegates power by ordinary statute |
| Sovereignty | Shared or divided between the two levels | Retained by the centre |
| Entrenchment | Regional powers are constitutionally protected | Regional powers can, in law, be revoked |
| Reversibility | The centre cannot unilaterally abolish the regions | The centre can, in legal theory, abolish the regional bodies |
| Arbitration | A constitutional court polices the division of powers | The Supreme Court rules on the limits of devolved competence, but within parliamentary sovereignty |
| Symmetry | Usually symmetric (states share the same powers) | Often asymmetric (nations hold different powers) |
| Amendment | Requires special procedures (e.g. supermajority, state ratification) | The centre can change the settlement by ordinary legislation |
The table repays close study because the contrasts are not random: each flows from whether power is entrenched (federalism) or merely delegated (devolution). This is why a federal system needs a written, higher-law constitution and a constitutional court to police the boundaries between the levels, while a devolved system can operate within an uncodified constitution founded on the sovereignty of the central legislature.
The USA is the classic example of a federal system. Its Constitution of 1787 establishes a clear division of powers between the national government and the fifty states.
Three features define US federalism. First, constitutional protection: the states cannot be abolished, nor their powers removed, by the federal government acting alone; only a constitutional amendment, requiring a two-thirds vote in both houses of Congress and ratification by three-quarters of the states, could do so. This entrenchment is the essence of federalism and the sharpest contrast with UK devolution. Second, judicial arbitration: the Supreme Court umpires disputes between the federal government and the states, in landmark cases such as McCulloch v Maryland (1819), which affirmed implied federal powers, and United States v Lopez (1995), which set a limit on federal authority over the states. Third, symmetry: all fifty states enjoy the same constitutional status and the same powers, even if they exercise them very differently.
The strengths of this system are real. It protects regional diversity and autonomy; it creates "laboratories of democracy" in which individual states can experiment with policies later adopted nationally; and it disperses power away from a single centre, guarding against its concentration. But the weaknesses are equally real. Federalism can entrench inequalities between states — in healthcare, education and civil rights — so that a citizen's entitlements depend heavily on where they live. It generates complexity, with multiple overlapping jurisdictions and frequent legal disputes. It can produce gridlock when federal and state governments pull in opposite directions. And, because so much turns on the Supreme Court's rulings, the politicisation of that Court raises persistent doubts about the neutrality of constitutional arbitration.
These trade-offs are directly relevant to the UK debate. Defenders of the present devolution arrangements argue that the UK enjoys some of the benefits of federalism — meaningful regional self-government, scope for policy divergence between the nations — while retaining the flexibility to adjust the settlement as circumstances change, precisely because the powers are delegated rather than entrenched. Critics reply that this flexibility is purchased at the cost of security: because the nations' powers can in law be curtailed by Westminster, as the UK Internal Market Act 2020 was said to do, the devolved settlement lacks the guaranteed protection that only entrenchment provides. The US example therefore illuminates both sides of the UK question — the value of entrenchment in protecting regional autonomy, and the rigidity and conflict that entrenchment can bring.
Germany's Basic Law (Grundgesetz) of 1949 — itself a product of post-war reconstruction, a classic "constitutional moment" — establishes a federal system built around sixteen Lander (states).
The key difference from the United States is that German federalism is more cooperative (sometimes called "administrative federalism"). Rather than the two levels operating in largely separate spheres, the federal government typically sets the legislative framework while the Lander administer and implement policy on the ground, and the two tiers work closely together. Germany therefore illustrates that federalism is not a single template: it can be competitive and separationist, as in the USA, or cooperative and integrated, as in Germany. This matters for the UK debate, because it shows that "a federal UK" could take very different forms.
Other federations underline the same lesson. Canada and Australia both combine entrenched federal structures with their own distinctive features — Canada accommodating a strong, French-speaking Quebec within an asymmetrical political culture, Australia operating a centralised brand of federalism in which the Commonwealth has grown steadily more dominant over the states. What unites all four examples, despite their differences, is the defining federal feature the UK lacks: a higher-law constitution that protects the powers of the sub-national units from unilateral abolition by the centre, policed by a court that stands above both levels. The variety among real federations is useful for evaluation because it shows that objections to a "federal UK" framed around any one model (such as US-style gridlock) can be met by pointing to alternative models — but the structural objection rooted in England's size, and the legal objection rooted in parliamentary sovereignty, apply whichever federal template is chosen.
The UK's devolution settlement is frequently described as quasi-federal because, although it does not satisfy the formal criteria for federalism, it exhibits several federal-like characteristics.
Federal features:
Non-federal features:
The honest conclusion is that the UK has acquired the appearance of federalism — elected national legislatures, a court ruling on the boundaries of their powers, statutory declarations of permanence — without its substance, which is the entrenchment of regional powers beyond the reach of the centre. The settlement looks federal from a distance but remains, in law, an exercise of delegated power within a sovereign unitary state.
A subtle but important point concerns the role of the UK Supreme Court compared with a true constitutional court. In a federal system, the constitutional court stands above both levels of government and enforces an entrenched constitution against them; it can strike down federal or regional legislation that exceeds the powers the constitution allows. The UK Supreme Court does adjudicate disputes about the limits of devolved competence — for example, ruling on whether a Bill passed by the Scottish Parliament or the Senedd falls within its powers — and to that extent it resembles a constitutional umpire. But it does not sit above Westminster: it cannot strike down an Act of the UK Parliament, because parliamentary sovereignty endures. Its role is therefore asymmetric, policing the devolved legislatures from above while remaining subordinate to Westminster. This is a precise illustration of why the UK is quasi-federal rather than federal: the machinery of arbitration exists, but it operates within, not above, the sovereignty of the central Parliament.
Some commentators and parties — notably the Liberal Democrats, and at times elements within Labour — have argued for a fully federal UK, in which the powers of the nations would be entrenched in a written constitution beyond the reach of an ordinary Westminster majority. The proposal is usually advanced as a way of securing the Union by guaranteeing strong, irreversible self-government to its parts, thereby answering the demand for independence with a settled federal alternative rather than the ad hoc, ever-shifting devolution of the present. The arguments cut both ways, and a strong answer weighs them rather than merely listing them.
| Arguments FOR a federal UK | Arguments AGAINST a federal UK |
|---|---|
| Clarity — a federal constitution would define each level's powers, ending the ambiguity of the present arrangements | England's dominance — England is about 84% of the UK's population; a federal system with an English Parliament would be lopsided, dwarfing the other nations |
| Protection — devolved powers would be entrenched, preventing Westminster from overriding them (as critics say the UK Internal Market Act 2020 did) | Limited appetite for English regions — the 2004 North East referendum rejected an elected regional assembly by 78% to 22% |
| The English Question — a federal structure could create English regional assemblies or an English Parliament, answering the West Lothian Question | The end of parliamentary sovereignty — federalism requires an entrenched constitution and a constitutional court, a revolutionary change to the British system |
| Stability of the Union — guaranteed self-government within a federal UK might dampen demands for Scottish independence | Northern Ireland's uniqueness — its power-sharing settlement, tied to the Good Friday Agreement, does not fit a standard federal template |
| Democratic legitimacy — each level would have a clear mandate and defined responsibilities | Practical complexity — designing a federation for parts of such unequal size (England's population is roughly ten times Scotland's) would be extraordinarily difficult |
The strongest evaluation recognises that the obstacles to a federal UK are not merely practical but structural. The defining problem is England: federations work most smoothly when their units are of broadly comparable size, so that no single member can dominate the whole. The UK is the opposite case, with one nation comprising the overwhelming majority of the population. An English Parliament would rival, and arguably overshadow, the UK Parliament itself; yet sub-dividing England into regions has been decisively rejected by the only electorate ever asked. This "English Question" — how to accommodate England within a devolved or federal UK without either dominating the Union or fragmenting England — is the single greatest barrier to a federal settlement, and a high-scoring answer places it at the centre of the analysis.
Because the English Question is so central, it deserves separate treatment. Devolution since 1998 created elected legislatures for Scotland, Wales and Northern Ireland but left England governed directly from Westminster, producing several anomalies.
Subscribe to continue reading
Get full access to this lesson and all 10 lessons in this course.