The short version
- A major poll indicates widespread openness to tactical voting among left-leaning voters seeking to prevent Nigel Farage’s party from gaining ground.
- Under scenarios with high tactical voting, Reform UK could drop to fourth place in seat count, while Labour gains enough seats to approach a parliamentary majority.
- The data suggests Prime Minister Andy Burnham is successfully attracting progressive support back to the Labour fold, reversing previous trends of alienation.
Recent polling data reveals a significant shift in voter behavior that could fundamentally alter the outcome of the next United Kingdom general election. Research conducted by Survation and the activist organization 38 Degrees suggests that tactical voting is not merely a theoretical possibility but a widespread intent among specific voter blocs. This strategic ballot switching appears driven primarily by progressive voters who are motivated to prevent Nigel Farage’s Reform UK from securing greater parliamentary influence. The findings indicate that if these voters coordinate their efforts, Reform UK could be pushed out of second place in terms of seats held, falling behind both Labour and the Conservatives.
The survey, which included more than 8,000 participants, highlights a notable realignment within the electorate during Prime Minister Andy Burnham’s first month in office. Left-leaning voters are returning to the Labour Party at twice the rate they are shifting from the right since April. This movement suggests that Burnham is successfully re-engaging the progressive base that may have felt alienated under previous leadership strategies. The data points to a potential electoral strategy for Labour that focuses on uniting the center and left, contrasting sharply with the party’s earlier attempts to attract conservative older voters before the 2024 election.
Under current modeling without widespread tactical voting, Labour would emerge as the largest party in parliament with 272 seats, holding a four-point lead over its competitors. Reform UK would secure 153 seats, positioning it as the official opposition, while the Conservatives would fall to third place with 85 seats. However, the introduction of tactical voting dramatically reshapes this landscape. Approximately 18 percent of voters in marginal constituencies indicate they are willing to switch their vote to a frontrunner rather than support their preferred party if it helps block a rival outcome.
If these undecided tactical voters were to act on their intentions, Reform UK’s seat count would plummet from 153 to just 62. This reduction would allow Labour to increase its tally to 319 seats, placing it only six seats short of an outright majority. The shift would be particularly pronounced in constituencies where Reform currently holds a narrow advantage. In 91 seats where Reform is projected to lose its leading position due to tactical voting, 46 would go to the Conservatives and 43 to Labour. This redistribution underscores the volatility inherent in the current political climate and the sensitivity of marginal seats to coordinated voter behavior.
Specific constituency analyses illustrate the mechanics of this potential shift. In Rawmarsh and Conisbrough, for instance, base models suggest Reform UK has a 51 percent chance of winning a tight race against Labour. However, under a scenario with increased tactical voting, the probability of Labour retaining the seat rises to 76 percent. Similarly, in Bassetlaw, Reform’s vote share might increase from 35 percent to 40 percent, yet the party could still lose the seat because tactical voting lifts Labour’s share from 32 percent to 40 percent. These examples demonstrate how strategic voting can override raw preference margins in closely contested areas.
The impact extends beyond Labour-held seats. In Newark, a constituency currently held by Robert Jenrick, who switched from the Conservatives to Reform UK, projections indicate a flip back to the Conservative Party under both standard and tactical voting scenarios. However, the likelihood of a Conservative victory increases from 68 percent to more than 99 percent if Labour supporters vote tactically to block Jenrick. This dynamic highlights how tactical voting can benefit not only the party initiating the strategy but also other competitors who are positioned as viable alternatives in local two-horse races.
Damian Lyons Lowe, chief executive of Survation, noted that while estimating tactical voting is complex, the underlying mechanics are straightforward. Four in ten voters currently support a party that cannot finish in the top two in their constituency and express willingness to vote tactically. When asked if they would lend their vote to the stronger local contender in a competitive race, approximately half responded affirmatively. This gap represents an untapped reservoir of political influence worth roughly 18 points of the national electorate, capable of significantly altering the composition of parliament.
The timing of this research is notable, released on the eve of Labour’s annual conference in Liverpool. The findings may encourage party strategists to consider calling an early election while Reform UK’s ratings are perceived to be ebbing and left-wing alternatives like the Greens appear to be losing momentum. However, experts caution that these projections are unlikely to be exact at this stage in the electoral cycle. With 200 seats considered tight marginals decided by less than five points, even a small swing of two to three points could shift approximately 100 seats, underscoring the high stakes and uncertainty surrounding future electoral outcomes.
This polling data marks a departure from previous Labour strategies that sought to broaden appeal toward conservative demographics. The current trend suggests a consolidation of the left and center as a defensive measure against the rise of Reform UK. Whether this tactical alignment can be sustained throughout an election campaign remains uncertain, but the initial indicators point to a electorate increasingly willing to prioritize blocking specific outcomes over expressing pure partisan preference. The implications for party strategy and coalition building in Westminster are substantial.
Sources behind this briefing
Go to the original reporting
- The Guardian World↗Tactical voting at next election could push Reform into fourth place, poll finds
