Introduction
Democracy has come under stress across the globe. Scholars, think tanks, and journalists alike signal democratic deconsolidation in countries as varied as Brazil, Hungary, Poland, Turkey, the United States, and Venezuela.Footnote 1 Concerns about deconsolidation in these countries have led to a rapidly growing literature, in particular after the 2016 election of Donald Trump in the United States. Scholars looked for causes in citizens that are thought to have eroding democratic valuesFootnote 2 or a lack of experience with basic democratic practices,Footnote 3 and in political elites that embark on an all-out restructuring of liberal democracy, tampering with the written rules of the gameFootnote 4 or subverting unwritten norms.Footnote 5
In response, the literature on militant democracy – or, more broadly, ‘democratic self-defence’Footnote 6 – has grown substantially.Footnote 7 This body of literature, originating with Loewenstein’s interwar work on European democracies combatting fascism and communism,Footnote 8 seeks to counter threats to democracy by a diverse array of institutional instruments, such as the party ban,Footnote 9 the rigidity of constitutional amendment rules,Footnote 10 withholding party subsidies, and restrictions on free speech or other political rights of individual politicians.Footnote 11 Much of militant democracy research is institutional in nature. Much, after all, proposes tweaks to the political system. Yet, it tends to leave the question of the electoral system out of the picture. And when electoral system design is included, conceptual devices are used that are not fully adequate to address the issue at hand.
This paper aims to fill this gap and proposes a different line of argumentation.
First, we identify that many prominent cases of democracies under stress have one element in common that is best understood as a ‘minority to majority’ effect. Minority to majority is the consequence of various features across electoral systems, and concentrates majoritarian power in the hands of a single minority. These features are quite varied, and go beyond conventional systemic dichotomies such as presidentialism versus parliamentarism, or majoritarianism versus proportionalism. Rather, they also encompass features such as high electoral thresholds, enforced proportionalism (seat bonuses), or having a mixed system. A wide range of features can turn a minority of votes into dominance of the executive.
Second, we develop a new institutionalist framework to identify the mechanisms that relate ‘minority to majority’ to democratic resilience. We argue that institutions affect the incentive structures and set the constraints of actors that function within these institutions. System features that are conducive to the minority to majority effect do not deterministically set specific outcomes, but they offer political elites both the resources to constrain democratic practices via executive aggrandisementFootnote 12 and the incentives to do so. It thus explains why political actors are more likely to undertake democracy-subverting action under specific institutional configurations. We illustrate the ways in which minority to majority has affected democratic resilience via various examples and counter-examples.
This paper will not engage in the normative militant democracy debate (‘is intervention legitimate, and if so, what kind?’), but starts off from the basic notion that all (modern) militant democracy theorists share,Footnote 13 namely: that a democracy should be allowed to defend itself. This paper argues that if that basic notion is correct, any effort in militant democracy should pay attention to electoral system design.
Importantly, defending democracy through electoral system design is ‘content neutral’, as it does not discriminate against ideas directly.Footnote 14 Therefore, electoral design would not usually qualify as a militant democracy instrument per se: instruments that discriminate between actors on the substance of their ideas.Footnote 15 However, if these ‘informal’ militant democracy measures can enhance democracy’s defence without discriminating between different ideas, such a measure might be preferred before – or at least alongside – instruments from militant democracy’s traditional arsenal. The argument presented here, although not normative in itself, therefore does have implications for normative militant democracy theory.
Electoral system design matters: the minority to majority effect
Militant democracy literature and electoral system design
In discussions on militant democracy, electoral system design is generally not given substantial attention. Even George van den Bergh, one of the early militant democracy theorists and an author on electoral systems,Footnote 16 did not pay specific attention to the effects of electoral system design in developing his ideas on democratic self-defence.
There are, of course, some notable exceptions. In a way, the intellectual father of the militant democracy tradition, Karl Loewenstein, paid attention to electoral system design in relation to militant democracy – thinking unfavourably of proportional representation, because of the relatively easy access it provides to the democratic arena.Footnote 17 In his two-part article ‘Militant Democracy and Fundamental Rights’ he wrote:
… power [by fascism] is sought on the basis of studious legality. If possible, access is obtained to national and communal representative bodies. This purpose is facilitated by that gravest mistake of the democratic ideology, proportional representation.Footnote 18
More recently, a few authors do explicitly link militant democracy (or, generally, protection against anti-system challengers) to the electoral specifics of a given democracy. Bligh contends that we should understand ‘American Exceptionalism’ regarding political freedoms (i.e. no party bans, as they are formally ‘a dead letter’, paired with few free speech restrictions)Footnote 19 in the light of the United States’ restrictive electoral system, resulting in a two-party system.Footnote 20 Bligh therefore speaks of a ‘de facto banning system’,Footnote 21 and argues that these implicit restrictions are in need of a justification just as much as, for instance, explicit restrictions on political freedoms such as a party ban.Footnote 22 Weill comes to the same conclusion as Bligh: ‘majoritarian democratic countries should examine the implications of their own election methods’.Footnote 23 Democracies with a system of proportional representation are far more likely to have at least one of two militant democracy instruments in their arsenal (either a party ban or an eternity clause): 94.5% of the proportional representation countries had at least one; against 55.5% of countries with a (majoritarian) First Past the Post system.Footnote 24 This fits in well with Bourne’s observation that ‘democracies ban parties when electoral systems are not effective at marginalizing the anti-system parties in question, either due to the effect of electoral rules or an anti-system party’s abstentionist stance’.Footnote 25
While these approaches primarily explore the connection between the choice of an electoral system and militant democracy measures, Issacharoff, Ginsburg and Huq make a more explicit normative choice for a specific electoral system out of militant democracy concerns.Footnote 26 Issacharoff sees the American system as the best bulwark against deconsolidation and therefore favours a system that is non-proportional – in which there are two dominant parties that marginalise challengers from the start – and non-parliamentary: ‘There are many reasons to be wary of presidentialism, but it does serve as a buffer to the threat posed by marginal parties’ ability to insinuate themselves into parliament and disrupt governance from within’,Footnote 27 which comes close to Loewenstein’s 1937 assessment above. For Issacharoff, however, electoral system design is not an alternative to instruments restricting democratic rights (as a party ban) per se; for Ginsburg and Huq it is. When they review different institutional design options – ranging from e.g. international courts to constitutional amendments – as alternatives to rights restrictions, Ginsburg and Huq also delve into the debate on parliamentary versus presidential systems. They (mildly) prefer parliamentary systems, which they see as ‘less vulnerable to erosion than presidential ones, ceteris paribus’.Footnote 28 They reason that in parliamentary systems ‘antisystem movements’ are more likely to be given a voice (in parliament) but actual power generally stays out of reach because then they need to function in coalitions; while the system itself is more responsive to shifting opinions and thereby more stable; and parliamentary systems have more mechanisms for accountability (such as debating government ministers in parliament).Footnote 29
The missing element: electoral minorities obtaining a political majority
The conceptual devices in the literature – presidential versus parliamentary systems or majoritarianism versus proportionalism – do not show the full issue at stake. Democratic backsliding has taken place across these distinct categories. They obscure a crucial characteristic that connects countries that recently went into democratic retreat, as varied as Hungary, Turkey, Venezuela, and the United States. They all suffer from system features that place majoritarian political power (of the executive and often even the legislative) in the hands of a single minority; features that do not spread but bundle political power.Footnote 30 This is what we label the minority to majority effect. Depending on features in the electoral system, majoritarian political power can even be awarded to a single party without a plurality (let alone a majority) of the votes. As we argue below, it is precisely this combination – majoritarian powers, resting on minorities – that increases the threat to democratic resilience. This minority to majority effect may occur in a variety of systems. Hence, straightforward dichotomies such as presidentialism versus parliamentarismFootnote 31 or majoritarianism versus proportionalismFootnote 32 do not suffice.
To be sure, parliamentarism and proportionalism can function as relevant institutional constraints on executive aggrandisement. In his scathing critique of presidentialism, Linz wrote ‘perhaps the most important implication of presidentialism is that it introduces a strong element of zero-sum game into democratic politics with rules that tend toward a “winner-takes-all” outcome’.Footnote 33 In the same way that parliamentarism constrains the executive, proportionalism functions as a political constraint on parliamentary majorities. Ginsburg and Huq explicate that ‘parliamentary systems are more open to the intuition that not only those who hold power, but those in opposition, should have formalized and entrenched entitlements’.Footnote 34
However, while we acknowledge the benefits of both parliamentarism and proportionalism, the minority to majority effect has risen in presidential as well as parliamentary systems, and in majoritarian as well as in proportional and mixed systems. We should, therefore, not emphasise the system type but rather the system features that invoke these risks. Even proportional systems can contain features (such as thresholds, seat bonuses, or a multi-tier allocation of seats)Footnote 35 that complicate the rules of the game in such a way that minority to majority effects may occur.
The United States is an example in many respects of the way in which electoral minorities obtain singular political majorities within democratic institutions. The 2016–2020 Republican presidency and the concurrent Republican majority in the Senate rested on a smaller number of votes than the Democrats had cast, due to geographical representation across states.Footnote 36 Various Democratic and Republican majorities in houses at the state level rest on regional representation via gerrymandered districts.Footnote 37
There are many examples outside of the United States as well, including in parliamentary and proportional and mixed systems. Hungary mixes proportionality and electoral districts. Via a new electoral law that introduced further bias, government party Fidesz cemented its power. Under the new rules it received more than two thirds of the seats in parliament in 2014 even though it obtained just 45% of the votes.Footnote 38 In Turkey, an extremely high electoral threshold of 10% undermines the potential for opposition to organise. Rather, in 2002, Erdogan’s AKP won 34% of the votes but received almost two thirds of the seats in the Turkish parliament (363 out of 550 seats, 66%).Footnote 39 In Poland the Law and Justice party, PIS, obtained a parliamentary majority based on 37.6% of the votes (235 out of 460 seats, 51%).Footnote 40 Greece (2004–2019) and Italy (2006–2013) briefly assigned a large bonus in parliamentary seats to the party (or party coalition) with the most votes, in order to stimulate or ensure a single parliamentary majority.Footnote 41
The minority to majority effect is most likely in conventional majoritarian systems with single member districts (such as the United Kingdom) and presidential systems (such as the United States). Yet it also occurs in mixed systems (such as Hungary), countries with a high electoral threshold (such as Turkey), or countries with enforced proportionalism (such as the short-lived bonuses in Greece and Italy).
Even systems with a moderate electoral threshold (5% for single parties) such as Poland and Germany may find themselves subject to the minority to majority effect under unfavourable circumstances, i.e. when multiple political parties barely fail to meet the electoral threshold. The type and interaction of complexities in basic proportional rules (e.g., thresholds, bonuses, multi-tier allocations, transferable votes) affect the translation of votes into seats,Footnote 42 which in turn affects the risk of minority to majority. The minority to majority effect can thus arise conditionally, depending on the distribution of votes across parties, and the way system features translate these votes into seats.
Non-mixed systems that emphasise proportionalism more radically – be it in a single district (such as the Netherlands) or via large multimember districts (such as Denmark) with a low electoral threshold – are, by contrast, highly unlikely to experience the minority to majority effect. In the Netherlands and Denmark, no single party has obtained a majority of seats in parliament since the introduction of universal suffrage.
How minority to majority raises actors’ resources and incentives for democratic deconsolidation: a framework
Resources and incentives
The minority to majority effect does not unequivocally threaten liberal democracy. It is unlikely, for instance, that German democracy would have come under threat if Angela Merkel’s CDU/CSU coalition party had obtained the parliamentary majority that it barely missed in 2013. Institutional configurations do not deterministically induce specific outcomes. Other institutional and cultural factors function as additional constraints. However, the minority to majority effect sets the incentive structures and constraints of actors that function within these configurations.Footnote 43 In this context, we argue that system features that lead to minority to majority effect offer political elites: (a) more resources to bend democratic institutions, rules, and norms to their advantage; and (b) stronger incentives to actually do so. Executive aggrandisement is not a necessary outcome, but the option is more viable in the context of minority to majority.
In the following we will substantiate this claim by looking at how system design, through minority to majority, shapes the resources and incentives of three crucial actors in the democratic process: voters, incumbents, and electoral influencers.
Voters, incumbents, and electoral influencers
Voters
First, we consider the impact of a system that experiences strong minority to majority effects on the voters within that system. Majoritarian elements affect the strategic considerations of citizens.Footnote 44 The incentives to vote for a third party or for a newcomer erode if there is little chance for such parties to get elected into parliament and/or office. Duverger’s law reads that systems with plurality-rule election rules in single member districts will stimulate bipartisanism,Footnote 45 except for third parties with strong regional roots.Footnote 46 Similarly, high electoral thresholds have the same effect on small and new parties, as a vote for any party that does not meet the threshold would effectively be a wasted vote. Ceteris paribus, in systems with these features, voters are more likely to take strategic considerations of vote choice into account next to their sincere preferences.
These strategic considerations have relevant consequences for democratic resilience. At first sight, one might consider that radical proportionalism is harmful to democracy, as it lowers the thresholds for radical, populist, and even anti-democratic parties to get elected into parliament, making use of the electoral platform in the process. This was the analysis of Karl Loewenstein in 1937 (see above), in part inspired by the demise of the Weimar Republic with its paralysed parliament.Footnote 47 And it must be recognised that the rise of modern radical right-wing populist parties in parliaments did first become visible in countries with rather proportional electoral systems such as Denmark (Danish People’s Party), the Netherlands (List Pim Fortuyn and the Freedom Party), and Switzerland (Swiss People’s Party). To some, this rise of populism in proportional systems has signalled a new democratic deconsolidation.Footnote 48
However, a system of proportionalism is more likely to have positive than negative effects when it comes to deconsolidation. Their voice in parliament has offered disgruntled and distrusting voters an alternative within the system. In absence of proportionalism, radical, distrusting and/or outright anti-democratic sentiments might not be voiced in parliament, but that does not mean that these sentiments do not exist in society. Distrust and populist sentiments are inherent to any democracy, but need not be problematic as long as they are canalised within the system and they do not substantially threaten the democratic system itself.Footnote 49 In this sense proportionalism offers a ‘safety valve’Footnote 50 by allowing, rather than excluding, these voices: in principle, representation is possible. Just compare the experience of the United Kingdom Independence Party (UKIP) voters in 2015 (13% of the votes, <0.2% of the seats in Parliament) to those that voted for the Freedom Party in the Netherlands in 2017 (13% of the votes and seats) and the Sweden Democrats in Sweden in 2018 (13% of the votes, 14% of the seats).Footnote 51 This positive effect of proportionalism is visible in empirical studies concerning political trust: proportionalism stimulates rather than undermines trust in parliament and democracy, although its effect is substantially small.Footnote 52
In contrast, majoritarian elements in an electoral system offer third party voters the incentive to tune out or vote strategically, as their sincere votes are likely to be ineffective, i.e. will not lead to representation in parliament. As such, one could argue, most of the time majoritarian arrangements may produce electoral outcomes that are not threatening to democracy.
Yet, that impression is deceiving. Disproportional systems can produce unstable equilibria, precisely because they prevent alternatives arising from within the system. Their conventional strength becomes a serious weakness when circumstances change.Footnote 53 The strategic incentives against alternatives within the system turn problematic as soon as a big corruption scandal arises (such as in Hungary in the mid-2000s or India and Brazil in the 2010s),Footnote 54 or when the mainstream candidates are both ‘historically’ unpopular (such as in the United States presidential elections of 2016),Footnote 55 or when a party system implodes (such as in Turkey in 2002).Footnote 56 Under such circumstances, lacking a ‘third option’, citizens are forced to vote for what they perceive as the lesser of two evils, like an Orbán, a Bolsanaro, a Trump, or an Erdogan. And if no serious alternatives are offered within the system, citizens will find these alternatives outside of that system.Footnote 57
Stable majoritarian democracy can thus become surprisingly fragile under adverse circumstances. In addition, in majoritarian democracy, citizens are not likely to punish their preferred party or leader for incremental violations of democratic principles. The larger the level of polarisation, and the lower the number of alternatives, the less likely candidates are to be punished for supporting policies that undermine democracy.Footnote 58
Incumbents
The bigger risk for democracy lies with the position of the incumbent. Recent studies into democratic resilience have put strong emphasis on the risk of executive aggrandisement, the process by which the executive erodes and eliminates checks on its power, such as independent (electoral) institutions, the courts, or the media.Footnote 59 Levitsky and Ziblatt carefully outline how liberal democracy is threatened primarily by elites who no longer agree about democratic norms and give precedence to the preservation or execution of political power over protecting those norms: ‘institutions alone are not enough to rein in elected autocrats’.Footnote 60
Indeed, democratic institutions are dependent on the politicians that shape them.Footnote 61 Yet, any choices-within-constraint approachFootnote 62 would argue that the way institutions are designed nevertheless forms an important precondition to a possible slow descent into authoritarianism. This risk is particularly high in institutional configurations that allow political power to rest in the hand of a single political minority.
First of all, this is a matter of resources. If political power is bundled in the hands of a single party, democracy puts a heavy burden on a constitution, democratic traditions, and democratic norms to keep this power in check. Svolik observes: ‘(…) the accumulation of too much power in the hands of an incumbent, appears to be a persistent threat to democratic stability’.Footnote 63 When powers need not be shared with other parties, a system of checks and balances becomes quite unlikely. Why would an incumbent limit itself by an opposition, a constitution, tradition, courts or media? Why would this unrestricted incumbent not bend the system to its will, if it has the political power to do so?
Contrast the many recent examples of single party governments that put democracy under stress in various ways – Turkey, Hungary, Poland, Brazil, Venezuela, the United States – with countries with a tradition of coalition government, such as Denmark or the Netherlands. In the United States the Republican majority in the Senate was able to stonewall Supreme Court nominations until after the presidential elections of 2016,Footnote 64 after which it could ensure a Republican legacy in the composition of the Supreme Court. In Hungary, the Fidesz government has rewritten the electoral system, was able to draft its new 2012 constitution without involving other parties, and in this constitution, Fidesz granted citizenship to what it calls ‘Ethnic Hungarians’ in neighbouring countries, whose 95% vote for Fidesz in turn helped cement further victories.Footnote 65
By contrast, in a proportional system, political actors lack the resources to engage in such acts, simply because they have to share political power. In typical proportional countries such as Denmark and the Netherlands, no party has received an absolute majority since the introduction of universal suffrage; and the odds of that happening are smaller than ever. Consequently, government is made up of a coalition of multiple parties. Any single party would simply lack the possibility to change the electoral system, to pack a supreme court, or to politicise state-controlled media according to its views. Coalition partners would first have to agree on an overriding concern that they deem to be so relevant that it is worth stretching democratic norms to deal with it.
Secondly, the incentives to override democratic norms and reshape the political system are particularly high when political power is bundled in the hands of a single political minority. In many countries that find democracy under threat, executive power (or a parliamentary majority) is artificially created by the electoral system. One may consider the Republican president Donald Trump, who lost the popular vote by millions but got elected by an electoral college in which his majority relied on 80,000 voters in three states, no more than would fill a football stadium.Footnote 66
This matters. Because when this political minority is out of power, they tend to end up empty-handed. This all-or-nothing, zero-sum game puts a lot of pressure on the peaceful transfer of power, as was evinced in the 2020/2021 transition from the Trump to the Biden government. This is, mutatis mutandis, no different in Hungary, Turkey, or Brazil. It explains why incumbents and parliamentary majorities have enacted policies that tilt the balance in the system in order to structurally enhance their electoral or political position. The most typical examples originate – again – from the United States and Hungary.
As said, in the United States the Republican majority in the Senate ensured a Republican-leaning Supreme Court that will last beyond their incumbency.Footnote 67 Gerrymandering and de facto disenfranchisement in several states of the United States has all but ensured fixed political majorities for the next decade, while undermining the spirit behind the principle of one man, one vote.Footnote 68 And in 2018, the Republican-led senate of the State of Wisconsin passed a bill to reduce the powers of the incoming Democrat governor and attorney-general.Footnote 69
Similarly, in Hungary the Fidesz government has adapted the electoral system in such a way that a minority of the votes would suffice to obtain a supermajority in parliament. Moreover, it has packed the Constitutional Court and other neutral institutions with its own nominees.Footnote 70
The majoritarian system thus gives the incumbent minority the resources – a lack of countervailing powers – and the incentives – strengthening or consolidating power in a zero-sum game – to bend democracy to its will. The temptation to appropriate power by unilaterally changing democratic rules or practices is hard to resist. The higher the levels of polarisation, the more attractive this temptation will be.Footnote 71 The incumbent will aim to tilt the political balance of the electoral process (electoral system, gerrymandering) and the checks on political power (subverting media and the justice system), to structurally improve its own position.
Democratic norm erosion by one party invokes like-minded behaviour by the other. Just imagine the party (and voters) which finds that the system actively works to their disadvantage. They are hardly able to correct this system. What keeps these parties (and their voters) motivated? And if they succeed in overcoming their systematic disadvantages, what would prevent them from taking revenge on their opponents?
Electoral influencers
A third group of actors consists of societal or foreign entities who aim to interfere with the electoral process to stimulate one potential outcome over another, for instance via the use of social media bots, negative campaigning, one-sided polarisation, and the introduction of fake news into the election campaign. While the resources available to engage in such tactics do not seem to inherently differ across electoral systems, the incentive structure differs considerably.
As elections in countries such as the United States and the United Kingdom show, relatively modest shifts in voting behaviour (turnout, vote choice) may have disproportional effects on the division of legislative and executive power. One may win the popular vote, but lose the election; gain a share of the votes, but lose seats. Political scientists Achen and Bartels have therefore argued that ‘in a two-party system with competitive elections, (…) the choice between the candidates is essentially a coin toss’.Footnote 72 This provides a relatively strong incentive to those wanting to influence election outcomes by interfering in the electoral process.
By contrast, in proportional, multiparty systems, small changes in vote shares tend to have proportionally small consequences in parliamentary seat distribution. Moreover, the losses incurred by one political party do not necessarily benefit their main ideological opponent.Footnote 73 This is most likely in multidimensional, multiparty systems: the ‘larger number of competitors affects the expected benefits of negative campaigning. It increases the uncertainty of acquiring the benefits of attack behaviour as voters have a much broader range of parties to choose from’.Footnote 74
Preliminary empirical analysis and anti-minority to majority engineering
A preliminary analysis: minority to majority in examples of democratic erosion since 2000
Over recent decades several countries have moved away from liberal democracy to electoral democracy (with weakened rule of law and independent media), or from electoral democracy to competitive authoritarianism (with a weakened political opposition).Footnote 75 The Varieties of Democracy project (V-Dem) shows that the democratic deconsolidation since 2000 has been most pronounced in countries such as Hungary, Poland, and Serbia (that were liberal democracies in the mid-2000s), as well as in Venezuela, Thailand, Turkey, and Nicaragua (that started out as electoral democracies). Yet, the quality of democracy has come under pressure in more countries, including the United States, Brazil, India, and the Philippines.Footnote 76
Of these countries, we contend that the minority to majority mechanism is visible in at least Venezuela, Brazil, Poland, Hungary, Turkey, India and the United States, both in the way that features of the electoral system provide majoritarian power to an electoral minority, and in the way that this strengthens the incentives and resources for that minority to subvert democratic procedures. To illustrate this, we will use Hungary and Turkey as examples.
Hungary is a prototypical country with a liberal democracy that experienced democratic deconsolidation, sliding into competitive authoritarianism.Footnote 77 The crucial elections in 2010 have been described as a ‘perfect storm’, when public disaffection led to a simple majority of votes for the then opposition alliance between Fidesz and KDNP.Footnote 78 The electoral system, which mixed majoritarian and proportional rules, turned this simple electoral majority (53%) into a parliamentary supermajority (67%). This supermajority gave the alliance the power to unilaterally amend the constitution, pack the courts, and write a new electoral law that was highly biased to favour Fidesz (by extending enfranchisement and redrawing district boundaries).Footnote 79 Under the new rules it consolidated its supermajority with only 44% of the votes in 2014.
At the beginning of the 21st century Turkey had a more tenuous relationship with democracy. It started out as an electoral (rather than liberal) democracy, and fell back to electoral authoritarianism under the governance of the AKP of Erdogan.Footnote 80 The AKP came to political power in 2002. It won a plurality of the votes (34%) but received almost two-thirds of the seats (66%) in parliament. Due to an implosion of the party system, many parties had ended up below the 10% electoral threshold, leading to 46% wasted votes.Footnote 81 Over the following decades, the ‘hegemonic’ power of the AKP provided them with the means to weaken countervailing powers such as the opposition, the media, the universities, and the judiciary.Footnote 82 AKP kept a hold of majoritarian political power (short of a parliamentary supermajority), despite never obtaining an electoral majority.
The new institutionalist argument we present is that, ceteris paribus, minority to majority makes democratic deconsolidation more likely: it added to the likeliness of the backsliding the countries mentioned above experienced. However, minority to majority neither necessarily leads to, nor is a necessary explanation of, democratic backsliding. We will illustrate this using the United Kingdom and Nicaragua as examples.
First, minority to majority does not necessarily lead to deconsolidation. Despite a long history of minority to majority, the UK has not experienced substantive democratic backsliding. Majoritarian powers are commonly attributed to the party with only a plurality of the votes.Footnote 83 In 2019, the Conservative party won 56.2% of the seats in the Lower House with less than 44% of the votes.Footnote 84 This solidified the position of the government of its then party leader, Boris Johnson. Since then, we have seen attempts by the executive to aggrandise its powers and reduce accountability. These attempts include the prorogation of British Parliament in 2019 in the month before the planned deadline for Brexit,Footnote 85 the 2021 proposals that enable government to sidestep judicial review,Footnote 86 and the 2022 proposal in the election law that would politicise the now independent Electoral Commission (that oversees the elections).Footnote 87 Yet, ultimately, party members ousted Johnson in the summer of 2022 in response to several crises of integrity and accountability.Footnote 88
Minority to majority is not a necessary explanation for democratic deconsolidation either. Nicaragua is an example of a country that experienced democratic backsliding without an evident role of minority to majority. Nicaraguan President Ortega obtained presidential power after the crucial 2006 elections with 38% of the votes. However, his party the FNLS obtained 35 of the 90 seats (39%) in the National Assembly, making Ortega a ‘minority president’.Footnote 89 Ortega expanded his presidential power, unopposed by a divided parliament, by packing the courts, co-opting the electoral committee, and turning competitive elections into authoritarian and ultimately hegemonic elections before 2012.Footnote 90
Minority to majority, institutional engineering, and electoral reform
According to political scientists ‘the electoral system is by far the most powerful lever of constitutional engineering’.Footnote 91 In the debate on engineering a stable democracy for segmented societies – a related, but different endeavour from oursFootnote 92 – prominent scholars have actively proposed power-sharing or even consociational institutions.Footnote 93 Northern Ireland, Lebanon, South Africa, Bosnia-Herzegovina, and Iraq all incorporated power-sharing elements into their constitution.Footnote 94
From a militant democracy perspective, countries do well in evading minority to majority effects by lessening majoritarian elements in institutional design and increasing proportional system features. Yet, in countries where strong minority to majority effects are already present, it is very difficult to reform the electoral system. New Zealand is one rare exception that was able to shed its majoritarianism 20 years ago.Footnote 95 In the United Kingdom, Tony Blair proposed electoral reform in the mid-1990s in the United Kingdom, but let go of this promise once he got elected and was in a position to benefit from the disproportional system himself.Footnote 96 The same goes for Trudeau in Canada, who had promised electoral reform – a more proportional alternative vote – only to shed this idea once he got in power and benefited from majoritarianism.Footnote 97 The reason why electoral reform is so difficult in majoritarian systems mirrors the reason why these systems may constitute a threat to democratic resilience: when in power, the incumbent has the resources to change the electoral system but typically loses the incentives to do so.Footnote 98
Minority to majority effects are therefore very much a cautionary tale. From the perspective of democratic perseverance, democracies do best to avoid legal changes that introduce minority to majority effects; democracies wanting to turn away from minority to majority in their political systems are likely to experience difficulty in doing so.
Conclusions and limitations
Various scholars have raised concerns with countries that move away from (liberal) democracy.Footnote 99 This paper set out to develop a new institutionalist, theoretical framework that argues how features of electoral systems contribute to this development. Divergent features of an electoral system can induce a similar effect: the concentration of majoritarian political power in the hands of a single electoral minority. We argue that this minority to majority effect affects the incumbents in a way that is detrimental to the resilience of democracy. Minority to majority effects provide political elites with stronger incentives and better resources to reshape democratic procedures to their own advantage. Hence, ceteris paribus, systems are more susceptible to democratic recess as the likelihood of a minority to majority effect increases.
The minority to majority effect is not induced by a single type of electoral or political system. Common divisions – such as those between presidential and parliamentary, or between majoritarian and proportional systems – do not suffice. It can also occur in mixed systems, in countries with a high electoral threshold, in countries with enforced proportionalism, and even – under unfavourable circumstances – in proportional systems with a more moderate threshold or the interplay of other rules that complicate proportionality. Moreover, these institutional features do not unconditionally pave the road towards democratic erosion. Rather, they condition and constrain actors’ incentives and resources.
Evidently, not all countries that structurally experience the minority to majority effect find their democratic institutions under threat. Majoritarian elements work quite well as long as levels of polarisation among the electorate and their political elites are relatively low,Footnote 100 as is evidenced by the United States until the 1990s.Footnote 101 Similarly, democratic erosion can also occur without being rooted in an evident minority to majority mechanism, as the case of Nicaragua shows. The system features of electoral politics are part of a broader range of factors that contribute to democratic resilience, including the rule of law, the constitution and its rigidity, and political society. Yet, the features that stimulate minority to majority set a bigger burden on these other factors.
The minority to majority effect we describe is of importance to militant democracy, deconsolidation and legal scholarship.Footnote 102 First, it conditions the suggestion that democratic erosion is rooted in the behaviour of elites that put democratic norms at risk.Footnote 103 We argue that this is more likely to happen in systems that transform an electoral minority into a power-wielding majority. Second, it further illustrates and explains how democratic erosion can be so gradual that it is difficult to mobilise opposition,Footnote 104 pointing to the minority to majority drivers behind incremental changes. Third, it ties directly to the emphasis on consensualism and power-sharing proportionalism as a means of conflict management.Footnote 105 However, we specify that the minority to majority effect is a system feature of various regime types. Even proportional and mixed electoral systems can suffer from minority to majority, for instance as a consequence of enforced proportionalism, of moderate to high electoral thresholds, or of unforeseen interactions between two or more of such complexities.Footnote 106
Fourth, it informs the normative militant democracy debate. Paying attention to minority to majority in electoral design adds a not directly content-related (and thus, in principle, non-discriminatory) instrument to the militant democracy arsenal, that – depending on one’s position in the normative debate – might be considered earlier than, or even instead of, content-related instruments, such as party bans. Fifth, the minority to majority effect has implications for legal reform, providing a (primarily) cautionary tale when it comes to legal reform: changes to the legal system that increase the minority to majority effect run the risk of de facto ‘locking in’ these changes, making later reform away from minority to majority harder.
In this paper we were only able to outline our main thesis, build the theoretical framework, and show how minority to majority makes sense in real-world examples. In doing so, we hope to have laid the groundwork for further empirical analysis of the minority to majority thesis.Footnote 107 This further analysis brings challenges of its own, as the focus on features over systems will make for more complicated categorisations.