Ten years after a divisive referendum set Britain on a path to leave the European Union, the country is reconsidering its isolationist stance. The 2016 vote, which reflected deep domestic fractures and the rise of populist sentiments across the West, initiated a period of volatility that failed to deliver the promised prosperity. While former Prime Minister Boris Johnson campaigned on a vision of national sovereignty and a new golden age, the reality fell short of expectations, leaving the UK with significant economic and political challenges. As populist movements gained ground across Europe and the United States, the 2016 referendum exposed deep divisions within the British political establishment over the country’s future. But it did not deliver the “ stunning success ” he had predicted, his vision of national renewal rested on restoring British sovereignty and reclaiming control of the country’s borders. Instead, Britain entered a period of political instability and mounting economic difficulties.
Following Johnson’s exit in 2022, the UK experienced rapid political turnover. His successor, Liz Truss, served only 45 days, and the subsequent Conservative leadership under Rishi Sunak failed to recover lost ground. The 2024 general election eventually resulted in a landslide victory for the Labour Party. Despite initial hesitation to advocate for a full rapprochement with the EU, the political landscape shifted again when Labour Prime Minister Keir Starmer resigned in July 2026, two years into his term, clearing the way for current Prime Minister Andy Burnham. His landslide victory in the 2019 general election appeared to signal the country’s determination to chart its own course outside Brussels. Paving the way for Liz Truss, who resigned after just 45 days in office, becoming the shortest-serving prime minister in British history, johnson’s premiership ended in 2022. The 2024 general election delivered a crushing defeat to the party and handed Labour a substantial parliamentary majority.
Economic data has become a central catalyst for this change. Leading economists report that the UK economy has suffered a GDP loss of 6 to 8 percent, coupled with a 12 percent decline in foreign investment. Mehmet Babacan, a professor at Marmara University and former central bank auditor, notes that the push for closer ties or even potential re-accession is driven by three main factors: economic growth, geoeconomics, and electoral positioning.
The economic argument for closer alignment is supported by research from institutions including King’s College London, Stanford University, and the Bank of England, which suggests the UK economy is notably smaller than it would have been otherwise. Babacan highlights that a deep alignment with the EU could potentially recover half of the costs attributed to Brexit. Studies further indicate that renewed integration could yield trade gains of approximately $32.9 billion for the UK and $29.7 billion for the EU.
Geopolitical pressure from the United States has also intensified the need for regional cooperation. With Washington issuing warnings regarding Europe’s potential civilizational erasure, the 27-member bloc is re-evaluating its strategic partnerships, including its stance toward a nuclear-capable UK. Babacan notes that if the UK were to rejoin, the strategic benefits for both sides would be significant.
Sandro Gozi, chair of the European Parliament’s delegation, suggested that because the UK maintains much of the necessary regulatory framework, an application could theoretically be achievable within a single parliament. However, analysts warn that the entry terms would likely be stricter than the previous arrangement. The EU is expected to reject any form of cherry-picking, meaning a new deal would likely exclude former rebates and opt-outs, potentially requiring a commitment to eventually adopt the euro.
Domestic politics remain a volatile variable. A September survey by the Messina Group (TMG) indicates that support for Labour could increase by up to seven percentage points if the party pushes for closer ties with Brussels. Public opinion has also flipped since 2016, when 51.89 percent voted to leave; a decade later, the survey suggests 52.4 percent favor stronger alignment or rejoining.
Prime Minister Burnham is reportedly using a strategy similar to that of Canada’s Mark Carney, framing cooperation with the EU as a protective measure against external pressures like US tariffs. However, political opponents are already mobilizing against this shift. Nigel Farage, whose Reform party is polling closely with Labour, has characterized the pivot toward Brussels as an opportunity, suggesting it could provide a significant political boost to his own movement.
