UK political turmoil continues with revolving door of PMs; Brexit's impact under scrutiny

The United Kingdom is currently experiencing a continued period of significant political instability, marked by the recent resignation of Prime Minister Keir Starmer on June 22, 2026. This departure, occurring less than two years after he led the Labour Party to a landslide victory in the 2024 general election, signifies the seventh change in leadership within a decade. This rapid succession of prime ministers underscores a prolonged era of profound political upheaval in Britain, originating since the 2016 Brexit referendum.

This persistent political turmoil and the frequent changes in leadership are widely linked to the enduring impact of Brexit. Analysts suggest that the UK's departure from the European Union has fundamentally reshaped the nation's political landscape, fostering increased polarization, economic challenges, and a more fragmented party system, which collectively hinder the establishment of stable governance. Economically, Brexit is estimated to have negatively affected the UK's GDP and business investment, with public sentiment increasingly reflecting a belief that leaving the EU was the wrong decision.