Labour Leadership Contest Revives Brexit Debate Amid Shifting UK-EU Relations

At a Progress conference, former Health Secretary Wes Streeting challenged Sir Keir Starmer for Labour's leadership on October 14. He called Brexit a "catastrophic mistake," reflecting a desire among Labour members to reassess the UK’s relationship with the European Union. This topic has been sidelined since the Trade and Cooperation Agreement was implemented in 2021.

The leadership contest reveals divisions within Labour regarding European policy. Starmer has taken a cautious approach, focusing on existing arrangements. In contrast, Streeting's comments indicate a willingness to engage pro-European sentiment among party members and the electorate. "The economic damage of Brexit cannot be understated," Streeting stated at the London event. "We owe it to the public to be honest about the need for closer ties with Europe."

This challenge comes during a by-election in Makerfield, where Brexit loyalties remain contentious. Conservative Party Chairman Kevin Hollinrake framed Streeting’s remarks as proof of Labour's intent to "relitigate Brexit," accusing the opposition of undermining governance amid economic challenges. Starmer's office has not publicly addressed Streeting's comments, but senior Labour figures like Shadow Chancellor Rachel Reeves emphasize focusing on domestic economic recovery over Brexit negotiations.

Streeting’s campaign may resonate with Progress members and younger Labour supporters frustrated with the leadership's stance on Europe. Peter Kyle, Shadow Secretary of State for Northern Ireland, supports reassessing trade arrangements but has not explicitly endorsed Streeting. Kyle stated, "Economic pragmatism should guide any future discussions with Brussels," positioning himself between differing party factions.

Labour's internal Brexit debate has implications beyond party politics. The European Commission, maintaining a cautious stance since the Windsor Framework was ratified in February 2023, may view a Labour government under new leadership as an opportunity for trade and regulatory adjustments. A senior EU diplomat remarked, "Brussels is always open to dialogue, but it will require clarity of purpose from London."

Polling by YouGov in September 2023 indicates that UK public opinion on Brexit remains split, with 42% viewing it as a mistake and 38% seeing benefits. The leadership contest poses electoral risks, particularly in Leave-voting regions like Makerfield, where Labour's majority is slim. These constituencies may signal how Brexit stances affect voter behavior in the anticipated late 2024 general election.

As the leadership race unfolds, the parliamentary Labour Party must navigate unity on trade and immigration issues. Chief Whip Alan Campbell's role will be crucial in securing support from MPs, especially those from Leave-majority areas. Starmer’s allies in the National Executive Committee will likely emphasize discipline during the annual party conference in early November.

If Streeting’s campaign gains momentum, it could force Starmer to adjust his platform to address calls for a more progressive European policy. However, this could alienate Eurosceptic voters in the Midlands and North of England, risking defections to parties like the Liberal Democrats.

The resurgence of Brexit as a central issue highlights ongoing tensions from the 2016 referendum and subsequent legislative efforts. While the outcome of Labour’s leadership race remains uncertain, the debate will likely shape domestic politics and the UK’s international relations. If Streeting succeeds, Labour could face a challenging path between economic realities and a divided electorate. The party must balance its internal discussions with the urgent needs of voters grappling with inflation, housing shortages, and strained public services.