MAPPED: Nine close-call battlegrounds that could boot Keir Starmer out of No10 as Labour seats turn blue

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WATCH NOW: Nigel Farage says Reform UK’s top team ‘won’t all be MPs’ as he’s quizzed by GB News’ Christopher Hope about Shadow Home Secretary

Susanna Siddell

By Susanna Siddell


Published: 26/07/2025

- 09:42

Updated: 26/07/2025

- 10:13

The Prime Minister could be forced to kiss nine of his most impressive feats from the last General Election goodbye

Sir Keir Starmer is set to feel the heat from the right as his most marginal seats are due to turn blue at the next General Election, latest polling has indicated.

In a mammoth poll conducted by think tank More in Common, Reform UK is projected to be the big winner with 290 seats, landing within “touching distance of a majority” while Labour whittles its parliamentary presence down to 126.


And, just to add salt to the wound, analysis of the MRP results by GB News has discovered that nine of Labour’s closest-won seats in 2024 risk being returned to a resounding blue, including the two most marginal seats in the country.

From Middlesbrough to Poole, six of Labour’s closest-won seats are expected to be handed to Nigel Farage, while the remainder are set to be won back by Kemi Badenoch’s party, the next time the nation heads to the polls.

Sir Keir Starmer

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The Prime Minister is due to lose out on his most marginal wins from 2024

Last July, nine Tories were pipped to the post by their red rivals, as Labour nabbed almost half of the top 20 closest seats across the UK.

The historic election, which ushered in political newcomers Reform UK, yielded an enormous rise in marginal seats, which are constituencies that were won by a minor majority, over previous national elections.

Almost one in five seats were conquered with an eye-watering margin of five per cent or less with 115 constituencies enduring a tantalisingly tight race.

But, now, notable fleeting figures that might have to wave goodbye to Westminster come 2029 include Britain’s youngest ever MP Sam Carling in North West Cambridgeshire.

The 23-year-old was catapulted into the Commons by snatching up an extra 39 votes with his Conservative runner-up biting at his heels at an excruciatingly tight margin of 0.09 per cent of the vote.

Below, GB News' analysis of the latest MRP polling shows the nine Tory-turned-Labour seats where Reform and the Tories are tipped to boot out Starmer’s party.

READ MORE GBN STORIES ON REFORM UK:

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Nine Tory-turned-Labour seats show that Reform and the Tories are tipped to boot out Labour

Hendon (London)

Current MP: David Pinto-Duschinsky (Labour)

Majority at the General Election 2024: 0.04 per cent (15 votes)

Forecast for next General Election: Conservative gain from Labour (Conservative: 34 per cent; Labour: 22 per cent)

Poole (South West)

Current MP: Neil John Duncan-Jordan (Labour)

Majority at the General Election 2024: 0.04 per cent (18 votes)

Forecast for next General Election: Reform UK gain from Labour (Reform: 29 per cent; Labour: 22 per cent)

North West Cambridgeshire (East of England)

Current MP: Sam Carling (Labour)

Majority at the General Election 2024: 0.09 per cent (39 votes)

Forecast for next General Election: Reform UK gain from Labour (Reform: 36 per cent; Labour: 18 per cent)

Peterborough (East of England)

Current MP: Andrew Pakes (Labour)

Majority at the General Election 2024: 0.28 per cent (118 votes)

Forecast for next General Election: Reform UK gain from Labour (Reform: 32 per cent; Labour: 20 per cent)

Chelsea and Fulham (London)

Current MP: Ben Coleman (Labour)

Majority at the General Election 2024: 0.32 per cent (152 votes)

Forecast for next General Election: Con gain from Labour (Conservative: 35 per cent; Labour: 32 per cent)

Middlesbrough South and East Cleveland (North East)

Current MP: Luke Myer (Labour)

Majority at the General Election 2024: 0.56 per cent (214 votes)

Forecast for next General Election: Reform UK gain from Labour (Reform: 33 per cent; Labour: 24 per cent)

Forest of Dean (South West)

Current MP: Matt Bishop (Labour)

Majority at the General Election 2024: 0.58 per cent (278 votes)

Forecast for next General Election: Reform UK gain from Labour (Reform: 38 per cent; Labour: 15 per cent)

Derbyshire Dales (East Midlands)

Current MP: John Whitby (Labour)

Majority at the General Election 2024: 0.68 per cent (350 votes)

Forecast for next General Election: Con gain from Labour (Con: 30 per cent; Labour: 21 per cent)

Sittingbourne and Sheppey (South East)

Current MP: Derek Wyatt (Labour)

Majority at the General Election 2024: 0.87 per cent (355 votes)

Forecast for next General Election: Reform UK gain from Labour (Reform: 47 per cent; Labour: 15 per cent)

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