Key Points
- A new report says progressive voters have been driven away from Labour because Keir Starmer has failed to project strong values, argument and vision.
- The report was produced by UCL’s Policy Lab using research from pollster Stan Greenberg, who worked for Tony Blair and Bill Clinton.
- Downing Street is understood to have been briefed on the findings, which were also shared with allies of Andy Burnham, Wes Streeting and Angela Rayner.
- Labour is bracing for poor results in Thursday’s elections, with the outcome seen as potentially triggering a leadership challenge.
- The report says Starmer is viewed negatively by three-quarters of voters, a level similar to Jeremy Corbyn’s ratings.
- Andy Burnham recorded the best ratings in the polling, with a positive view from about a third of voters.
- Only about 13% to 15% of progressive voters were open to voting Labour, while just 2% of Reform voters were.
- The research suggests Labour could benefit from a more forceful challenge to Donald Trump and a stronger defence of environmentalism.
- It also says progressive voters want more radicalism on public services, taxation, climate and democracy, not just closer ties with the EU.
- The report argues that the next election will be won by the side that can unite left and right blocs through clear values, not only policy delivery.
London (Britain Today News) May 7, 2026 – Labour is facing a fresh warning that Keir Starmer’s political style and lack of an openly progressive argument are pushing away the voters the party needs to keep together, according to a report based on research by the veteran pollster Stan Greenberg.
Why is Labour under pressure now?
The warning lands at a difficult moment for Labour, with the party braced for poor results in Thursday’s elections and growing speculation that weak performance could reopen debate about Starmer’s leadership. The report says the government has not only struggled to persuade voters on policy, but has also failed to present a clear moral case for why it is in office and what kind of country it wants to build.
According to the analysis, that absence of a compelling argument is especially damaging among progressive voters, many of whom now feel detached from Labour even when they agree with some of its policy positions. The research suggests that disaffection is not just about disappointment, but about a deeper sense that Starmer is uncomfortable speaking the language of values, principle and political purpose.
What does the report say about Starmer?
As reported by Marc Stears, the director of UCL’s Policy Lab, the findings point to a wider frustration with the Prime Minister’s approach. He said:
“Keir Starmer came in on a wave of frustration with politics as usual and a promise of change. There is no hiding from the frustration voters feel with his time so far.”
Stears added:
“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. The party and politics that is able to tap more effectively into the core values of their potential supporters might do better in this newly polarised age.”
The report’s central argument is that Starmer has not converted his electoral mandate into a persuasive values-based narrative that can hold together Labour’s broader coalition.
The polling also paints a harsh picture of Starmer’s standing. He is viewed negatively by three-quarters of voters, which the report says is similar to the levels once seen for Jeremy Corbyn. That comparison matters because it suggests the problem is not limited to one side of the party’s internal debate; instead, it reflects a wider weakness in how Starmer is currently perceived across the electorate.
How are progressive voters reacting?
The report says progressive voters are not simply drifting away from Labour because of one policy dispute. Instead, they feel the party is failing to speak to their deeper concerns on climate, democracy, taxation, public services and international values. In the report’s focus groups, voters argued that Britain has not shown the kind of values-based opposition to Donald Trump that they have seen from politicians in countries such as Canada and Spain.
The polling found that a willingness to confront Trump produced a strongly positive response, especially among Labour voters and among people who had moved to other progressive parties such as the Greens and Liberal Democrats. More than two-thirds of those voters backed that stance, suggesting that foreign policy and democratic language can still matter to parts of the electorate that might otherwise seem hard to reach.
James Baggaley of the Policy Lab said Labour supporters want much more than a centrist repositioning through Europe. He said:
“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,”
which indicates that any progressive reset would need to be more than symbolic.
Could Trump and climate become election issues?
The report suggests that Labour may have missed an opportunity to turn recent international events into a clearer statement of political values. It cites Starmer’s decision not to join the Iran war as an example of an issue that was broadly welcomed by voters but, in the report’s view, not framed forcefully enough as a moral stand. The critique is that a technocratic explanation about legality was not as powerful as a direct argument that the war was wrong.
Climate is identified as another area where Labour could have a more passionate and values-driven message. The report says this would not only appeal to progressive voters but could also fit a wider argument about energy independence and household bills, especially after the Iran war’s impact on fossil fuel prices. In other words, the research argues that climate policy should be presented not as a niche concern, but as part of a practical and moral case for government action.
What does the polling show about Labour’s wider challenge?
The polling suggests Labour is losing a meaningful share of progressive support while not making significant gains elsewhere. Only about 13% to 15% of progressive voters were open to voting Labour, whereas only 2% of Reform voters were open to doing so. That means Labour’s current problem is not simply that it has failed to win over the right; it is also struggling to retain the left and centre-left voters who were crucial to its broader coalition.
The findings also suggest that Liberal Democrat voters may be more open to Labour than Green voters, but that the party’s challenge remains substantial. The report says Reform UK may be approaching its ceiling, with few Conservative voters saying they would consider backing Nigel Farage’s party, which means the next phase of British politics could depend heavily on whether Labour can reconnect with dissatisfied progressives.
As reported in the research, Andy Burnham had the strongest personal ratings, with around a third of voters viewing him positively. That detail is politically significant because his name has already been linked to conversations around Labour’s future, and the report’s circulation among allies of Burnham, Wes Streeting and Angela Rayner shows how quickly internal leadership speculation can gather pace when polling deteriorates.
Is Labour facing a leadership challenge?
The report stops short of predicting a leadership contest, but it clearly places pressure on Starmer at a sensitive moment. Labour is braced for poor election results, and the research has already been passed to figures close to possible future contenders. That combination makes the current situation more than a routine policy critique; it is also a warning about the durability of Starmer’s authority if results worsen.
The report’s wider message is that political success in this period may depend less on cautious competence alone and more on the ability to speak to voters’ values in a clear and emotionally credible way. Greenberg and Stears describe this as a failure to adapt to a “newly polarised age,” where both the left and right increasingly respond to leaders who can define a sharper political purpose.
What happens next for Labour?
The immediate test will be Thursday’s elections, which could deepen the pressure on the Prime Minister if Labour performs badly. Beyond that, the party faces a strategic choice: continue with Starmer’s more cautious style, or try to reconnect with progressive voters through a stronger language of principle on Europe, climate, democracy and public services.
The report implies that Labour cannot rely on brand loyalty alone. If Starmer wants to stabilise his position, the findings suggest he may need to show not just what his government will do, but what it believes in and why that matters to voters who have started looking elsewhere.
