Constitutionalism is the principle that government power should be structured and limited by a set of fundamental rules, typically enshrined in a constitution. It sounds straightforward, but the concept carries far more weight than “having a constitution.” Many countries possess elaborate written constitutions that do little to restrain the people in charge. What separates constitutionalism from mere constitutional text is whether the limits on power are actually enforced, by courts, by institutions, and by a political culture that treats those limits as binding rather than decorative.
More Than Just Having a Constitution
Nearly every country on Earth has a written constitution. North Korea has one. So does China. The existence of a document labeled “constitution” tells you almost nothing about whether the government respects individual rights, tolerates opposition, or submits to independent judicial review. Constitutionalism refers not to the document itself but to the practice of treating that document as a genuine constraint. It demands that power be divided, that no single branch of government hold unchecked authority, and that the rights declared in the text be enforceable in practice.
This distinction matters because it explains a puzzle that often confuses people watching politics from the outside. Why do some democracies with nearly identical constitutional language end up in very different places? The answer usually lies not in the text but in whether the surrounding institutions, norms, and actors treat the constitution as a real ceiling on what those in power can do. A constitution without constitutionalism is a promise nobody is required to keep.
Legal Versus Political Constitutionalism
One of the deepest ongoing debates in constitutional thought is who should have the final say over what the constitution means. Legal constitutionalism holds that courts, and especially a supreme or constitutional court, should be the ultimate interpreters. Political constitutionalism argues that elected legislatures or the executive should retain that authority, since they are accountable to voters in ways that judges are not.
Neither position is purely theoretical. In South Africa, a series of landmark judicial review decisions have triggered political backlash from the legislature and executive, with government officials framing the courts as threats to governmental authority. The common complaint is that judges are “meddling in the political space” and weakening government power through their rulings.1Potchefstroom Electronic Law Journal. Attacks on the Judiciary: Undercurrents of a Political versus Legal Constitutionalism Dilemma? This tension is not unique to South Africa. Versions of it play out wherever a court strikes down legislation that an elected majority supports. The question of whether democracy means “the majority gets what it wants” or “the majority gets what it wants within limits” is never fully settled, and constitutionalism lives in that gap.
In practice, most functioning constitutional democracies blend both approaches. Courts review laws for constitutionality, but legislatures can amend the constitution or appoint judges. The balance shifts over time, and the friction between courts and parliaments is a feature of the system, not a bug. The trouble starts when one branch stops respecting the other’s role entirely.
When Constitutional Tools Get Used Against Democracy
One of the more unsettling developments of recent decades is what scholars have called “abusive constitutionalism,” the use of formally legal constitutional procedures to undermine the democratic system those procedures were designed to protect. Instead of breaking the rules, leaders rewrite them. They amend the constitution, pack courts, restructure electoral commissions, and reorganize media regulators, all through mechanisms that look constitutional on paper but hollow out democratic competition in practice.
Hungary and Poland offer a sharp comparison. In Hungary, Viktor Orbán’s Fidesz party won a two-thirds parliamentary supermajority, which gave it the power to rewrite the constitution entirely. The party used that supermajority to push through a comprehensive constitutional overhaul that restructured the conditions of political competition in ways that proved very difficult to reverse. Poland followed a somewhat different path. The ruling Law and Justice party attempted similar maneuvers, particularly targeting the judiciary, but Poland’s institutional architecture and a more fragmented political opposition preserved enough democratic resilience that an electoral reversal became possible. In 2023, a coalition of opposition parties won power and began trying to undo some of the damage.2Politics in Central Europe. Why Does Backsliding Depth Vary? Legal Populism, Abusive Constitutionalism, and the Differential Trajectories of Democratic Erosion in Hungary and Poland
The Hungarian and Polish cases reveal something important about constitutionalism: written rules alone are not enough to prevent erosion. The depth of backsliding depended on factors like the size of the ruling majority, how many institutional veto points existed, and whether the opposition could remain organized enough to fight back. A constitution that concentrates amendment power in a single legislative body is more vulnerable than one that requires multiple institutions to agree before the rules change.
Authoritarian Regimes and the Constitution as a Tool
Constitutionalism is usually discussed in the context of democracies, but authoritarian regimes also use constitutions, just for different purposes. In democratic systems, constitutional reform is typically associated with institutional balancing and political liberalization. In authoritarian systems, the constitution can become a tool for stabilizing elite control and managing leadership transitions without any real movement toward democracy.
Kazakhstan provides a detailed example. Since independence, the country’s constitution has been revised repeatedly, but the reforms have followed the shifting needs of the ruling regime rather than any democratic logic. Successive changes in the late 1990s and 2000s consolidated a superpresidential system under Nursultan Nazarbayev, expanded executive power, modified the electoral system, and enshrined the dominance of the ruling party in constitutional text. Later reforms beginning around 2017 shifted toward “succession engineering,” carefully reallocating powers to manage the transition from one leader to the next while preserving centralized control.3CENTRAL ASIA AND THE CAUCASUS. CONSTITUTIONAL REFORMS AS A STRATEGY OF REGIME STABILITY: ADAPTIVE AUTHORITARIAN CONSTITUTIONALISM IN KAZAKHSTAN
After mass unrest in January 2022, a new wave of constitutional changes under President Kassym-Jomart Tokayev removed the special constitutional status of the former first president and introduced a non-renewable seven-year presidential term. These changes were presented as democratizing reforms under the banner of “New Kazakhstan,” but analysis suggests they reconfigured rather than reduced presidential power, shifting from a personalist model to a more technocratic but still concentrated executive system.4CENTRAL ASIA AND THE CAUCASUS. CONSTITUTIONAL REFORMS AS A STRATEGY OF REGIME STABILITY: ADAPTIVE AUTHORITARIAN CONSTITUTIONALISM IN KAZAKHSTAN The constitution, in this context, functions less as a limit on power and more as a flexible instrument for managing it. This pattern, which researchers describe as adaptive authoritarian constitutionalism, is not limited to Kazakhstan. Versions of it appear across Central Asia, the Middle East, and parts of Southeast Asia, wherever regimes have learned that a carefully managed constitution can lend legitimacy to arrangements that have nothing to do with constitutionalism in the limiting-power sense.
Emergency Powers and the Stress Test
If constitutionalism is about limiting government power, emergencies are its hardest test. Wars, pandemics, natural disasters, and security crises all create pressure to expand executive authority quickly. Most modern constitutions anticipate this by including provisions for states of emergency, granting the executive temporary expanded powers in exchange for the promise that those powers will be returned when the crisis passes.
The problem, of course, is that “temporary” does not always mean temporary. Research on emergency governance across democracies finds that while constitutions authorize emergency powers for the purpose of maintaining national security and order, they often fail to adequately guard against those powers being used to entrench executive dominance at the expense of judicial independence and civil liberties.5Research Consortium Archive. Constitutional Limits and Emergency Powers in Modern Democracies Whether emergency governance works well or badly depends on three things: the constitutional design of the emergency provisions themselves, the strength of institutional oversight during the emergency, and the presence of a civil society capable of pushing back when the emergency is over.
History is full of cautionary examples. Emergency powers declared during a crisis and then quietly retained for years afterward, sunset clauses that get extended indefinitely, surveillance capabilities built for one purpose and repurposed for another. The COVID-19 pandemic gave the world a live experiment in emergency constitutionalism, with some countries respecting legislative oversight throughout and others using the crisis to expand executive power in ways that outlasted the health emergency. For people living in constitutional democracies, emergencies are the moment when the system’s real commitments become visible. The question is not whether the government will gain temporary power during a crisis. It will. The question is whether the constitutional architecture is strong enough to take it back.
How Constitutional Ideas Travel Between Countries
Constitutionalism is not a fixed recipe that every country copies from the same source. Constitutional ideas migrate between jurisdictions constantly, borrowed, adapted, and sometimes distorted in the process. The literature on transnational constitutional borrowing has reached a somewhat paradoxical consensus: in a globalized world, borrowing is both inevitable and, in a meaningful sense, impossible. People writing a new constitution naturally look beyond their borders for inspiration. But in the process of migration, constitutional ideas must be stripped of their original context and then recontextualized to fit a different legal system, political culture, and historical experience.6The American Journal of Comparative Law. When Constitutional Theories Migrate: A Case Study
This means that the same constitutional principle can produce very different outcomes in different countries. Judicial review, for instance, functions one way in the United States, where it developed incrementally through case law, and quite differently in Germany, where a dedicated Constitutional Court was established after World War II as a deliberate structural safeguard. South Africa’s Constitutional Court was designed with both models in view but operates in a context shaped by apartheid and its aftermath. The label is the same, the institutional reality is not. People sometimes assume that if a constitutional feature “works” in one country, exporting it should produce similar results. The evidence suggests otherwise. The success of a borrowed constitutional idea depends heavily on the surrounding institutions, political dynamics, and public expectations in the receiving country.
Constitutionalism in the Digital Age
A relatively new frontier for constitutionalism involves the governance of digital platforms. The idea behind “digital constitutionalism” is that the principles traditionally used to limit government power, things like due process, transparency, proportionality, and protection of individual rights, should also apply to the major technology companies that now shape public discourse and control access to information.
The core challenge is straightforward. Platforms like social media companies exercise enormous power over what billions of people see, say, and share. They set and enforce rules about permissible speech, they algorithmically amplify or suppress content, and they can effectively silence individuals or organizations with no formal appeal process. Scholars working on digital constitutionalism argue that finding a way to apply rule-of-law values to articulate desirable restraints on the exercise of power in the digital age is the defining challenge of this emerging field.7Social Media + Society. Digital Constitutionalism: Using the Rule of Law to Evaluate the Legitimacy of Governance by Platforms
This is easier said than done. Traditional constitutionalism developed to constrain states, and its tools, separation of powers, independent courts, enforceable rights, do not map neatly onto private corporations operating across dozens of legal jurisdictions. Platforms are not governments, and their users are not citizens in any constitutional sense. Yet the practical power these companies exercise over public life rivals or exceeds that of many state institutions. The European Union’s Digital Services Act represents one attempt to impose constitutionalism-like constraints on platform governance through legislation, requiring transparency in content moderation, mandating appeal mechanisms, and setting limits on algorithmic manipulation. Whether this approach will prove effective, or whether it simply shifts the problem from unaccountable private power to complex regulatory bureaucracy, remains an open question.
Constitutionalism Beyond the Liberal State
Most discussions of constitutionalism default to a particular model: a liberal democratic state with a written constitution, a system of separated powers, and a court that enforces individual rights. But constitutionalism does not have to look like this, and one of the more interesting challenges to the standard model comes from Indigenous legal traditions.
In Canada, the survival and resurgence of Indigenous legal orders and constitutional traditions disrupt the assumption that constitutionalism means one set of laws applied uniformly across one state. Indigenous peoples maintained and continue to maintain their own legal systems, governance structures, and constitutional norms, many of which predate the Canadian state by centuries. Recognizing these traditions articulates a constitutionalism that accounts for a plurality of laws rather than insisting on a single legal order.8Global Constitutionalism. Relational legal pluralism and Indigenous legal orders in Canada
This pluralist view of constitutionalism raises genuinely difficult questions. If a single state contains multiple legal orders, how do they interact? What happens when they conflict? Who decides which system’s rules apply in a given situation? These are not abstract puzzles. They arise in real cases involving land rights, resource governance, child welfare, and criminal jurisdiction. The answers vary widely. Some countries attempt to accommodate legal pluralism through treaties, co-governance arrangements, or constitutional recognition of Indigenous rights. Others ignore Indigenous legal orders entirely, treating the state’s constitution as the only legitimate source of law.
What makes the pluralist challenge so important for constitutionalism is that it questions whether the entire framework of one state, one constitution, one legal order is the right starting point. For much of the world’s population, including Indigenous peoples across the Americas, Australia, New Zealand, and parts of Africa and Asia, the liberal constitutional state arrived as an imposition, not a consensus. Constitutionalism that takes these histories seriously looks quite different from the version taught in most law schools, and the tensions between universal constitutional principles and locally rooted legal traditions show no sign of easy resolution.
Global Constitutionalism and the International Order
The final stretch of the constitutionalism conversation moves beyond individual states altogether. “Global constitutionalism” asks whether the international order itself can be understood, and improved, through constitutional principles. The idea is that international law should not just be a collection of treaties that states follow when convenient, but a genuine legal order grounded in the rule of law, with enforceable norms, institutional accountability, and protections for fundamental rights that operate above the level of any single country.9Global Constitutionalism. Contested compliance of obligations under international law: A take from Global Constitutionalism
The gap between this aspiration and reality is wide. International institutions have limited enforcement mechanisms, powerful states routinely ignore rulings they dislike, and there is no global equivalent of a supreme court with binding authority over all nations. Still, the framework is useful as a diagnostic tool. When people ask why certain international norms are respected and others are not, or why some states comply with international court rulings and others walk away, they are asking constitutional questions about the structure of the global order. The concept forces a distinction that matters at every level: is this a system governed by rules, or is it a system where the rules exist but power determines whether they are followed? That question animates constitutionalism whether you are talking about a single city council or the United Nations Security Council.