Makerfield By-Election 2026 — UK Elections Dashboard

Overview

At-a-glance · Candidates · Key context

Polling day

18 Jun

Thursday 2026

2024 GE Lab majority

13.4pp

5,399 votes · Josh Simons

Local swing to Reform

~18pp

May 2026 locals vs GE 2024

Electorate

76.6k

GE 2024 turnout 52.5%

Reform wards won

8 / 8

7 May 2026 · clean sweep

Why triggered

Burnham
pathway

Simons resigned 14 May

What's at stake. Josh Simons (Labour) resigned on 14 May 2026 to allow Greater Manchester Mayor Andy Burnham to stand — clearing a path for Burnham to contest the Labour leadership against Keir Starmer. Reform UK's Robert Kenyon, a local plumber and 2024 GE candidate, swept Bryn ward in the May locals and is the clear challenger. Makerfield has been Labour since 1906. If Reform wins, political commentators describe it as "the most significant by-election in post-war British history." The central question: can Burnham's personal vote — 63% across Greater Manchester in the 2024 mayoral — overcome an 18-point swing to Reform in the local elections held just weeks ago?

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The Burnham premium: history vs current headwinds

In three mayoral contests Burnham won Wigan borough with 63–74% of the vote — roughly 25–30pp above Labour's local council share in the same area. If even half that premium transfers to a Westminster by-election ballot, Labour holds comfortably. But Reform won every Makerfield ward in the locals by an average of 23pp, and no Westminster incumbent has held a by-election seat anywhere in Britain since July 2023. Use the Scenario Explorer to model your own blend of these forces.

Confirmed candidates

Andy Burnham

Labour

Greater Manchester Mayor since 2017 · MP for Leigh 2001–17 · Cabinet minister under Blair & Brown · 63.4% in 2024 mayoral election

Robert Kenyon

Reform UK

Local plumber & NHS technician · Army reservist · Won Bryn ward May 2026 · 31.8% at GE 2024 · Veteran of 4 Makerfield campaigns

Michael Winstanley

Conservative

Con averaged 7.4% in May locals · Orrell their only meaningful ward (19.4%) · Tactical squeeze risk high

Jake Austin

Liberal Democrats

LD averaged 3.6% in locals · Not a factor in outcome · Tactical squeeze to Labour likely if anti-Reform mood strengthens

Rebecca Shepherd

Restore Britain

Rupert Lowe's new party (ex-Reform UK) · First-ever Restore Britain parliamentary candidate · Reform vote-splitter risk

Alan 'Howlin' Laud Hope

Monster Raving Loony

Co-founder with Screaming Lord Sutch · Adds character, not votes

Forecast & Polling

Pre-poll models · Constituency polls as published · Prediction markets

Published constituency polls

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No constituency polls published yet.
This section will update automatically as fieldwork is released.

Earlier pre-poll model — Survation (15 May 2026)

✓ Scenario 2: Andy Burnham as Labour candidate ACTIVE

P(Labour wins): 67% · Central estimate from 10,000 simulations.
Blends GE2024, 7 May locals, Census 2021 demographics, Burnham-effect re-weighted from Gorton & Denton post-poll.

✗ Scenario 1: Other Labour candidate (counterfactual)

P(Labour wins): ~0% · Reform would be prohibitive favourite.
Illustrates the scale of Burnham's personal vote effect: ~+18pp vs a standard Labour candidate.

Prediction markets (as of 21 May 2026)

Polymarket · Labour win

57.5%

Polymarket · Reform win

39%

Lines.com · Labour win

67.5%

Lines.com · Reform win

26.5%

Prediction markets aggregate trader sentiment and money, not voter intention. They move quickly on new information.

Who is Burnham targeting?

His campaign messaging mapped against each ward's Census 2021 demographics

The idea. Burnham's launch built his pitch around a single audience: communities hit by cost of living, lost industrial jobs and deprivation — "40 years of policies that left people struggling to afford the everyday basics." The Survation crossbreaks add who is actually moving to him: women (+21), under-35s (+28) and, narrowly, the over-55s (+2), while he trails among men (−15) and 35–54s (−10). Below, each demographic signal from his message is scored against the real ward data we hold, producing a Burnham-fit score per ward. Higher = a ward whose population most resembles the people his message is built for.

Targeting signals — who his message is built for

Every box is tagged by how it is grounded — His words (a direct quote), Poll crossbreak (Survation subgroup data), or Our inference (our reading of where his frame lands, not something he said) — and links to its source.

Ward fit ranking

Each ward scored 0–100 on how closely its Census profile matches Burnham's target audience, then set beside its actual May 2026 local result. The last column is the gap between his demographic fit and where Labour actually polls.

How the score works. Ten demographic signals are drawn from Burnham's stated priorities and the poll crossbreaks. Each ward's value on every signal is rescaled 0–1 across the eight Makerfield wards, flipped where a high value is a headwind (e.g. degree-educated, managerial), then combined as a weighted average. It is an interpretive lens on his messaging, not a turnout model or a prediction — ward demographics can't capture the gender or age splits that the poll shows are central to his coalition.

Sources. Makerfield launch speech transcript, 22 May (British Brief) · Launch coverage, 22 May (HuffPost) · “Cost of Living” interview, 22 May (LBC) · Leeds devolution / public-ownership speech, 18 May (New Statesman) · Constituency poll & crossbreaks, 26 May (Survation) · ward demographics from ONS Census 2021 (the same data behind the Ward Explorer).

Scenario Explorer

Not a poll. Adjust the levers to model different paths to victory.

Local→GE blend 65%

0% = start from 2024 GE (Lab +13pp lead) · 100% = start from 7 May locals (Reform +23pp lead). By-elections typically sit between locals and GE — locals overstate Reform due to lower turnout and no Burnham name.

Turnout calibration

Map locals → GE-equivalent (calibrated)

Applies the fitted local→GE relationship to the 2026 local shares before blending: Lib Dems & Greens are over-stated locally (scaled down), Con modestly, Labour ≈ neutral. Reform is left uncalibrated — it barely contested local elections before 2025, so no local→GE ratio exists yet (see docs/local_ge_calibration.md).

Burnham personal vote +10pp

Burnham's mayoral premium over standard Labour in Wigan borough is ~25–30pp. This slider sets how much of that transfers to a Westminster ballot. Survation modelled ~+18pp at constituency level. 0pp = treat like any Labour candidate.

Green tactical squeeze 25%

Greens averaged 10.4% in May locals. What fraction votes Labour tactically to stop Reform? Gorton & Denton showed Greens can hold firm; Runcorn showed they can fold. By-elections amplify tactical voting.

Con tactical squeeze 15%

Con averaged 7.4% but hit 19.4% in Orrell. What fraction of Con voters switch to Labour to block Reform? In Runcorn, most Con voters went Reform, not Labour.

Restore Britain drain (from Reform) 2pp

Rebecca Shepherd (Restore Britain, Rupert Lowe's party) is the first parliamentary candidate for the new party. Could peel off Reform-leaning voters who are wary of Farage. First-time parties typically score 1–4%.

PROJECTED VOTE SHARES — this scenario

WARD-LEVEL IMPACT (starting from May 2026 locals)

Each bar shows the projected vote split in that ward after applying your scenario adjustments to the local election baseline.

Caveats. This is a scenario tool, not a model or poll. All numbers are illustrative. Ward-level projections apply constituency-level adjustments uniformly — real swings vary by ward. Win probability uses a ±5pp normal error around the projected lead. Restore Britain vote is not in the local baseline — it is added from Reform's share only.

Ward Explorer — Makerfield

Real ward boundaries · Click any ward for a full demographic + electoral breakdown

Election

Comparable By-Elections

Recent contests that frame what's possible in Makerfield

No incumbent party has held a Westminster by-election since Uxbridge & South Ruislip (July 2023) — a 12-contest losing streak for incumbents. Makerfield would be the 13th test of that pattern.