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Labour Faces Progressive Voter Drift: UCL Report Highlights Starmer’s Value Gap

5/7/2026, 8:46:33 PM

Report Findings

UCL Policy Lab analysis of Stan Greenberg polling finds progressive voters view Prime Minister Keir Starmer as uncomfortable with progressive values. The study links voter drift to a lack of clear values articulation and calls for more radical positions on public services, taxation, climate and democracy. Three-quarters of respondents rate Starmer negatively, comparable to former leader Jeremy Corbyn, while only 13-15 % of progressive voters remain open to Labour.

Context

These findings surface ahead of Thursday’s local elections, which could determine whether Starmer faces a leadership challenge. Downing Street was briefed on the study, and the report was shared with allies of potential contenders Andy Burnham, Wes Streeting and Angela Rayner.

Numbers

Seventy-five percent of voters view Starmer negatively. Only 13-15 % of progressive voters would consider Labour, versus 2 % of Reform UK supporters. Andy Burnham enjoys a positive rating from roughly one-third of respondents. Progressive respondents favor closer EU ties and a radical agenda on services, taxes, climate and democracy. Willingness to confront U.S. President Donald Trump yields a strong positive response among progressives.

Implications

The study says Labour’s chance to unite left- and right-leaning blocs hinges on a clear progressive value narrative. Without it, the gap with the Greens and other left-of-centre parties may widen, reshaping Labour’s policy agenda before national elections.

Criticism & Gaps

Analysts criticize Starmer’s personal style and limited values-based messaging on the Iran conflict, climate action and opposition to Donald Trump as alienating progressive voters. The report also notes a “failure to come to terms with our newly polarised age” and does not disclose its full methodology or specific policy proposals.

Verbatim Quotes

  • “Some of this can be put down to his personal style but this report suggests it is also due to his discomfort with progressive values.” — Marc Stears, Director, UCL Policy Lab
  • “Our research shows that progressive voters do want closer ties to the EU, but they’re also looking for much more radicalism on public services, taxation, climate and democracy,” — James Baggaley, Policy Lab researcher
  • “Unlike previous Labour prime ministers, Keir Starmer faces a serious challenge from a party to his left.” — UCL Policy Lab report

Looking Ahead

Thursday’s local polls will test Labour’s appeal to progressives. A poor result could trigger a leadership contest, prompting a reassessment of the party’s values messaging and policy focus to win back left-leaning voters.