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when voters come in carphilly In South Wales When elections are held later this month, it will be more than just one seat in the Senedd, Wales’s devolved parliament.
Caerphilly, a post-industrial town just north of cardiffhas long been considered safe Labor area. But in recent years, economic turmoil and social change have made strong seats like these much less predictable.
So the contest is not just about who wins a seat, but also what kind of Wales will emerge from a period of turmoil. Will it cling to the certainties of its industrial past? or someone is looking away plaid cymru And the prospect of Welsh independence as a political voice for such unease? Or, alternatively, will it turn towards the populist right?
What happens here may indicate whether Labour’s grip on the Welsh valleys is beginning to loosen, and whether new political forces are taking root. It is a local competition with national stakes.
Labor remains the dominant political force in Wales, but the past 18 months have been turbulent. Vaughan Gething’s brief and troubled leadership came after the retirement of Mark Drakeford as First Minister.

Meanwhile, current First Minister Alunred Morgan faces her own challenges. Fourteen members of the Labor group will step down before the 2026 Senedd election.
The Caerphilly by-election comes at a difficult time for Labor in both the UK and Wales, due to the death of sitting Labor member Hefin David.
Labour’s UK leadership is focused on Westminster, while in Wales, divisions over candidate selection and policy have sometimes exposed cracks in the party’s valley strongholds. History warns.
For example, in 2005, Labor suffered a crushing defeat in nearby Blaenau Gwent when former Labor member Peter Law stood as an independent after rebelling against the party’s candidate selection. His victory – and the by-election victory that followed his death – showed how local discontent can overturn even the safest seats.
Whatever happens in Caerphilly, the real test for Labor will be what comes later, as the outcome could affect its majority to govern and pass the budget. It may continue in office as the largest party, but without power.
rise of reform
One of the most notable developments in Welsh politics is its rising profile. reform ukis now rebranding its Welsh operations as “”Improvement UK Wales”
Analysis points to similarities with the Brexit Party and UKIP. Like these earlier parties, Reform takes advantage of the undercurrent of discontent running through many post-industrial communities.
While some research suggests that reform may be even more racially divisive than its predecessors.
In Caerphilly, Reform has an active local campaign and a simple message: to bring money and decision-making back to local communities. The party is positioning itself against the Welsh Government’s record in the Senedd, expressing anger towards Westminster.
About the authors
Mark Collinson is a lecturer in political history at Bangor University.
Robin Mann is Reader in Sociology at Bangor University.
This article is republished from Conversation Under Creative Commons license. read the original article,
For some voters, Reform’s appeal is less about specific policies but more about mood – frustration with established politics and a desire for something new.
Under the changes coming next year, the Senedd will grow in size and adopt a more proportional voting system. This may make it easier for smaller parties like Reform to gain representation, giving this by-election importance as a test of their strength.
A strong showing could signal a profound realignment in the political geography of Wales, and measure how far populist politics are embedded in areas that were once considered the bedrock of Labor Wales.
First step towards plaid government?
Meanwhile, plaid Cymru is keen to show it can turn growing national support into real gains.
The party has already come close to victory in Caerphilly. In 1968, its candidate Phil Williams reduced Labour’s majority from more than 20,000 to less than 2,000 votes.
More recently, former plaid leader Leanne Wood’s surprise victory in nearby Rhondda in 2016 showed that plaid could make inroads into Labour’s strongholds. But their defeat five years later underlined how difficult it is to maintain momentum.

Polling suggests that if current trends continue, plaid could form a government in 2026, but this depends on continuing to build ground in areas such as Caerphilly. The victory here will not just be symbolic; It will demonstrate that plaid’s message resonates beyond its rural and Welsh-speaking heartlands.
Upcoming electoral reforms could further boost plaid’s chances, if it can show voters it offers a credible alternative to Labour.
Expectations for other parties are modest. The Conservatives are struggling to make headway in Wales, while the Liberal Democrats are marginalised. But the Caerphilly by-election will still send a message beyond this one constituency.
Whatever the outcome, Caerphilly will offer a snapshot of a nation in change. A comfortable victory for Labor would indicate that its dominance in the valleys will continue. However, a strong showing for plaid or reform would point to a deeper realignment. It is proof that Wales’s political future could look very different to its past.