The parliamentary battle over Brexit and the constitution

Today sees the publication of a new book by the Unit’s Meg Russell and Lisa James, The Parliamentary Battle over Brexit. Here the authors summarise some of its key findings about why parliament was drawn into such controversy over the implementation of Brexit. They reflect on what these events teach us about our constitution, as well as what may need to change in order to avoid repeating such problems, and to mend the damage done.

The UK’s arguments over what became known as Brexit began long before the June 2016 referendum, and continued with increasing bitterness afterwards. Parliament was often central, both as a venue for such arguments, and in terms of disputes about its proper role. It and its members frequently faced criticism and blame. Our new book, published today, charts The Parliamentary Battle over Brexit, from the early pressures for a referendum, through disputes about the triggering of Article 50 and control of the House of Commons agenda, the repeated defeats of Theresa May’s deal, and Boris Johnson’s unlawful parliamentary prorogation, to the UK’s eventual departure from the EU following his deal. The book charts what happened, but also asks what went wrong and whether things could have been handled differently. It reflects on what these events teach us about the functioning of our constitution, and what if anything might need to change.

The book includes a wealth of detail about key political moments, and the roles of different individuals and groups. Here we focus on some of the bigger questions about the lasting legacy of the battles over Brexit for the culture and institutions of UK politics, and particularly for the place of parliament itself. A fuller version of this analysis appears in the final chapter of the book.

Referendums and public participation

The referendum of 23 June 2016 was only the third ever such UK-wide vote (the first being on European Community membership in 1975, and the second in 2011 on changing the House of Commons voting system). The handling of the referendum was the single biggest error of the Brexit process, from which many other difficulties flowed.

Unlike the 2011 referendum, which was underpinned by legislation setting out the detail of the proposed new voting system, no clear prospectus was offered to the voters for Brexit. Prime Minister David Cameron hoped to use the vote – described disapprovingly by the House of Commons Public Administration and Constitutional Affairs Committee as a ‘bluff call’ referendum – to make the question of Brexit go away. Parliament never debated the substance of the question, the government did not detail the options, and civil servants were forbidden from preparing for a Leave vote. Leave campaigners argued at the level of principle, rather than on a specific plan. As one Brexit-supporting interviewee told us, ‘it was only [after the referendum] that different types of Brexit started coming to the fore. Soft Brexit and hard Brexit had never been canvassed before the referendum; the expressions were coined afterwards’. Issues that would soon come to dominate the agenda, such as membership of the Customs Union or Single Market, and crucially the Northern Ireland border, were barely mentioned during the campaign. This left the government – and parliament – in a very difficult position. The different options for Brexit had to be established only after the vote had taken place, and on this the voters had conveyed no clear instruction.

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How far did parliament influence Brexit legislation?

Parliament’s role in the Brexit process has been the subject of widespread controversy among politicians, commentators, and experts. This makes it important to understand exactly what kind of influence parliament wielded in that period. Tom Fleming and Lisa James shed new light on this question by summarising their recent article, Parliamentary Influence on Brexit Legislation, 2017-2019, as published in ‘Parliamentary Affairs’.

Parliament’s role in the Brexit process was – and remains – highly controversial. But despite this controversy, there is widespread agreement that parliament was unusually influential during this period, and particularly during the hung parliament that lasted from 2017 to 2019.

This verdict is largely based on parliament’s high-profile impact on the Brexit negotiations, where MPs famously torpedoed Theresa May’s exit deal, and delayed the UK’s eventual departure from the EU on multiple occasions. But parliament also considered a raft of important Brexit-related legislation, which aimed to unravel the UK’s membership of the EU and create new domestic regulatory frameworks. This legislation has been less studied, but is crucial to our understanding of the relationship between parliament and government in this period.

Our recent article therefore explored the extent and nature of parliament’s influence on this Brexit-related legislation. We did so by analysing the parliamentary passage of the 13 Brexit-related bills introduced in the 2017-19 parliament, including the fate of over 3000 proposed amendments.

More specifically, we explored three different mechanisms by which parliament can influence government legislation: passing non-government amendments; forcing government concessions; and influencing the government’s approach through ‘anticipated reactions’. For each mechanism, we investigated its prominence between 2017 and 2019, and compared this to evidence from earlier periods.

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Boris Johnson and the myth of ‘getting Brexit done’

In departing the premiership, Boris Johnson and his supporters will present a key part of his legacy as ‘getting Brexit done’. But, Meg Russell argues, this claim is distinctly dubious. Johnson helped secure the Leave victory in 2016, but was subsequently central to blocking Theresa May’s efforts to implement the result. Meanwhile his own Brexit deal was agreed despite his own team recognising its flaws, and leaves major ongoing problems regarding Northern Ireland.

As Boris Johnson steps down, how will his time in office be remembered? His premiership collapsed in July under a weight of allegations about honesty and integrity, which had dogged his record and were cited by a flood of ministers resigning from his government. His constitutional legacy was a troubled one, and his attitude to upholding important norms was lamented by many key figures. But these qualities were often seen as the Achilles heel of a Conservative leader otherwise imbued with winning qualities. In particular, many would cite his most important legacy as ‘getting Brexit done’, and using that pledge to win his party a sizeable majority in the general election of December 2019. During the first Sky debate of the recent Conservative Party leadership contest, while none of the five candidates raised their hand to say that they would be happy for Johnson to serve in their Cabinet, Penny Mordaunt nonetheless interrupted to insist that ‘he got Brexit done’. In his own valedictory tweet following the election of Liz Truss, Johnson celebrated ‘winning the biggest majority for decades, [and] getting Brexit done’.

But actually, what was Johnson’s Brexit record? A closer inspection shows good reason to question this epitaph, as the leader who succeeded where others had failed, delivered Brexit and discovered a winning election formula. Certainly, Britain’s membership of the EU ended on his watch; and yes, the election victory was resounding. But to a significant extent, these achievements rested on the selfsame qualities that came to dog him later. Ultimately, Johnson’s hastily-agreed deal generated major tensions over the status of Northern Ireland which remain highly problematic today.

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The continuing constitutional pressures of Brexit

Ahead of the launch event for their new book on the continuing constitutional pressures of Brexit, Oran Doyle, Aileen McHarg and Jo Murkens summarise the book’s introductory essay. They conclude that, five years on from the seismic constitutional event that was the 2016 referendum, it is clear that Brexit is exerting pressure on various aspects of the constitution, but it remains too early to tell the full impact of Brexit on the UK constitution.

The United Kingdom’s withdrawal from the European Union was clearly a development of major significance that affected the UK constitution and its three legal systems, and brought about a series of political crises. But the prolonged process of negotiating the terms of withdrawal and the future UK-EU relationship also imposed and exposed a range of other constitutional tensions and pressures. This is true not only in respect of the UK itself, but also for the EU – which experienced a major recasting of its external borders, a recalibration of internal decision-making dynamics, and challenges to core features of its constitutional order – and in particular for Ireland – which, by virtue of its geographic position and constitutional history, has faced unique political and constitutional challenges as a consequence of Brexit.

In The Brexit Challenge for Ireland and the United Kingdom: Constitutions Under Pressure, recently published by Cambridge University Press, scholars based in the UK and Ireland explore a wide range of constitutional, legal, and political issues affecting both countries which have arisen out of Brexit. These include questions of territorial governance within the UK, the renewed prospect and implications of a united Ireland, the use of constitutional referendums, the impact of Brexit on political parties, executive-parliamentary relations, and the role of the courts and law officers in constitutional disputes.

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The Fixed-term Parliaments Act did not cause the Brexit impasse

Next week MPs debate the government’s bill to repeal the Fixed-term Parliaments Act 2011. One argument frequently deployed for scrapping the Act is that it generated gridlock over Brexit. But, Meg Russell argues, no clear counterfactual to support this claim has ever been presented. In fact, when considering the possible scenarios, it seems likely that the situation would have been made worse, not better, had the Prime Minister retained an untrammelled prerogative power to dissolve parliament in 2017–19.

Next week MPs debate the remaining stages of the Dissolution and Calling of Parliament Bill, which seeks to repeal the Fixed-term Parliaments Act 2011 (FTPA). It proposes to reinstate the pre-FTPA position, whereby the Prime Minister would effectively control general election timing using prerogative power. A key argument deployed by those seeking repeal of the FTPA is that it helped to cause the Brexit deadlock of 2019: that the FTPA, as the Conservative manifesto put it, ‘led to paralysis at a time the country needed decisive action’. But to what extent is this really true?

While suggestions that the FTPA created the Brexit deadlock are commonplace, most experts who contributed to the three parliamentary committees that have considered FTPA repeal (the Commons Public Administration and Constitutional Affairs Committee, Lords Constitution Committee and Joint Committee on the Fixed-term Parliaments Act) argued that the deadlock resulted from other factors. Most obvious were the post-2017 combination of a minority government, the need to deliver on a contested referendum result, and deep divisions within the governing party. These problems were clearly serious, and it is very far from clear that the FTPA could have resolved them.

A careful reading of the evidence presented to the three parliamentary committees, and of the Commons second reading debate on the bill, finds that most claims against the FTPA over Brexit are distinctly vague. No clear counterfactual is offered. This particularly applies to events during Theresa May’s premiership, when the most intractable problems arose. The situation did change in the autumn of 2019 under Boris Johnson (as discussed below), but the FTPA’s targeting as a causal factor dates back far earlier than this. Likewise, during interviews with a series of senior figures for a current book project on parliament and the Brexit process, I have asked several critics of the FTPA how, if Theresa May had been able to trigger an early general election without parliament’s consent, things would have turned out differently. I have yet to receive a convincing reply.

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