Potential re-accession of the United Kingdom to the European Union

The trend of the poll data shows that, over time, support for Brexit has waned, while public opinion in the UK has gradually moved in favour of rejoining the EU (either totally, or partially, such as joining the European single market).

In September 2023, thousands of people participated in a march in London campaigning for the United Kingdom to rejoin the EU.

[6] The president of the European Commission, Ursula von der Leyen, expressed her support for the UK eventually rejoining the EU.

[10] Some UK political parties have policy proposals for the United Kingdom, or its member countries, to rejoin the European Union in the future, while others have ruled out supporting it.

An All-Party Parliamentary Group on Europe was set up in October 2024, with the aim of promoting closer ties with the EU.

During the United Kingdom's membership of the European Union, it did not seek to adopt the Euro and attained an opt-out as a part of the Maastricht Treaty negotiations.

Prior to January 2024,[19] Opinium, as published by WeThink, asked the following two questions;Would the requirement to adopt the Euro as currency change your decision?

People from Denmark, France, Germany, Italy, Spain, and Sweden were asked; Fieldwork was conducted between the 6th and 26th of October 2023.