The Greater Manchester mayoral byelection is underway, with Labour's Bev Craig expected to win comfortably, according to recent polling. This historic byelection, triggered by Andy Burnham's ascent to prime minister, has been overshadowed by national politics, yet it remains a critical test of voter sentiment in one of the UK's most powerful regional roles.
Why This Byelection Matters for Greater Manchester
With over 2 million eligible voters, this is the biggest byelection in British political history. The winner will control a £3bn annual budget and oversee powers in housing, health, policing, and transport. Greater Manchester has experienced faster economic growth than any other UK region over the past decade, making this election pivotal for future investment and policy direction.
Under the supplementary voting system, if no candidate reaches 50% of first-preference votes, second-choice preferences are counted. Labour is widely seen as benefiting from this system, as it is more likely to be the second choice for Green, Lib Dem, and even some Conservative voters. Reform UK, however, cannot rely on such broad cross-party support.
Polling Snapshot: Labour's Lead
A More in Common poll conducted this week gave Craig a 20 percentage point lead over Reform UK's Sian Astley. The survey, largely completed before Burnham became prime minister, also placed the Greens third at 14 points, just ahead of the Conservatives. If Reform UK finishes second, Labour's lead could stretch to 30 points, according to the same poll.
| Party | First Preference Share | Projected Second Preference Impact |
|---|---|---|
| Labour (Bev Craig) | ~38% | Strong: likely to gain from Green/Lib Dem voters |
| Reform UK (Sian Astley) | ~18% | Weak: limited second-choice appeal |
| Green | ~14% | Moderate: may transfer to Labour |
| Conservative | ~13% | Mixed: some to Labour, some to Reform |
National Distractions: Burnham and Farage
The byelection has been overshadowed by two national events: Andy Burnham's rapid rise to prime minister and Nigel Farage's self-imposed parliamentary byelection in Clacton. Farage's focus has shifted 200 miles south-east, leaving Reform UK's campaign in Greater Manchester under-resourced and less visible. Meanwhile, Labour has enjoyed a Burnham bounce in national polls, which appears to be boosting Craig's local campaign.

Key Takeaways from the Byelection
- Labour is favored to win, with a 20-point lead in recent polling.
- The supplementary vote system benefits Labour due to second-choice preferences.
- Reform UK's campaign is hampered by Farage's focus on Clacton.
- The new mayor will manage a £3bn budget and significant regional powers.
- Voter turnout will be crucial; over 2 million are eligible.
What to Watch on Election Day
As polls close, attention will turn to the first-preference counts and the distribution of second-choice votes. If no candidate reaches 50%, the supplementary system will determine the winner, potentially within days. Labour's Craig is expected to cross the threshold comfortably, but a low turnout could tighten the race.
For residents, the result will shape transport, housing, and policing policies for years to come. For political analysts, it offers a snapshot of the national mood post-Burnham and pre-Farage's Clacton outcome.
FAQ
Who is running in the Greater Manchester mayoral byelection?
The main candidates are Labour's Bev Craig, Reform UK's Sian Astley, the Green Party's candidate, and the Conservative candidate. Several smaller parties and independents are also on the ballot.
Why is this byelection happening?
The byelection was triggered after Andy Burnham won the Makerfield parliamentary byelection on 18 June, requiring him to step down as mayor of Greater Manchester.
How does the supplementary vote system work?
Voters rank candidates in order of preference. If no candidate gets over 50% of first-choice votes, the top two candidates go to a second round, where second-choice votes from eliminated candidates are redistributed.
What powers does the Greater Manchester mayor have?
The mayor controls a £3bn annual budget and has authority over housing, health, policing, and transport, making it one of the most powerful regional positions outside London.