SHOCK WIN FOR REFORM: Is Britain’s Political Map About To Change?
Reform UK’s breakthrough in Pembrokeshire has provided the party with another political milestone, but the result also raises a more complicated question: is this evidence of a wider transformation in British politics, or a highly local result shaped by unusual circumstances?
Scott Thorley’s victory in the Hakin by-election was significant in one clear respect. He became the first Reform UK councillor on Pembrokeshire County Council after securing 179 votes, ahead of Welsh Conservative candidate Brian Taylor on 144. Independent candidate Lee James Bridges received 106 votes, while the Green candidate polled 85. Welsh Labour’s Nicola Harteveld received 27 votes after withdrawing from active campaigning. In total, 661 votes were cast, representing a turnout of 32.7 per cent.
The numbers therefore deserve careful examination.
A Reform victory in a council by-election does not automatically translate into evidence that the same voting pattern exists across Wales, let alone across Britain. Local by-elections can be heavily influenced by candidate recognition, local issues, turnout, campaign organisation and the circumstances that caused the vacancy.
In Hakin, those circumstances were particularly unusual.
The contest followed the death of former councillor Mike Stoddart. The Labour candidate subsequently suspended her campaign and withdrew from active campaigning after her teenage son was reportedly subjected to verbal abuse by strangers. Reform therefore entered a contest in which one of the established parties was operating under highly unusual circumstances.
That does not remove the significance of Thorley’s victory. It does, however, provide important context for understanding what the result can and cannot demonstrate.
Wales has already become a very different political landscape
The bigger story is that the Hakin result comes after a remarkable transformation in Welsh politics.
The Senedd election held on 7 May 2026 was the first Welsh Parliament election fought under the new closed proportional-list system. Wales now has 16 constituencies, each returning six Members, for a total of 96 seats. Voters cast a single vote for a party or independent candidate, with seats allocated according to vote share using the D’Hondt formula.
The result was historic.
Plaid Cymru won 43 seats and formed the Welsh Government, while Reform UK won 34. Welsh Labour won nine, the Welsh Conservatives seven, the Wales Green Party two and the Welsh Liberal Democrats one. It was the first Senedd election in which Labour did not emerge as the largest party.
That change is important when assessing Reform’s performance in Pembrokeshire.
The party is no longer simply attempting to establish itself as a national political movement without representation in Wales. It has a substantial presence in the Senedd, and the new electoral system means that parties can translate significant vote shares into seats across constituencies without having to win individual wards under a first-past-the-post system.
In other words, Wales has already provided one of the clearest examples of how Britain’s changing electoral landscape can alter the distribution of political power.
But local politics tells a different story
Pembrokeshire itself has a distinctive political structure.
The county council has historically contained a large number of independent councillors. According to the figures supplied in the original report, 34 of the 60 councillors sit without a formal party affiliation, with 19 belonging to the Independent Group.
The Conservatives have 11 councillors, Labour nine, Plaid Cymru three and the Liberal Democrats two.
Against that background, the arrival of a Reform councillor represents a change in the composition of the council. But it is not necessarily evidence of a wholesale replacement of the established parties.
The Hakin vote also demonstrates why turnout matters.
Only 661 votes were cast. Thorley’s winning total of 179 therefore represented less than one-third of all votes cast. The result was decisive in terms of who won the seat, but it was produced by a relatively small electorate participating in a local contest.
That distinction becomes particularly important when political parties attempt to use by-election victories as evidence of national momentum.
Reform’s challenge is now larger than winning individual seats
Reform UK faces a different political task now that it has significant representation in the Senedd.
The question is no longer simply whether the party can attract protest votes or win individual contests. It must also demonstrate that it can maintain support across different parts of Wales and operate effectively within an institution where it is the second-largest party.
There have already been developments illustrating the pressures involved.
In September, Reform UK’s Welsh leader Dan Thomas stepped down after confirming that he had been arrested on suspicion of assault and controlling or coercive behaviour. He has said he is innocent. Around the same period, Senedd member Sarah Cooper-Lesadd defected from Reform to Plaid Cymru, saying she believed Reform did not have a sufficient commitment to Wales.
Those developments do not determine Reform’s future, but they demonstrate the difference between electoral expansion and institutional consolidation.
A party can gain seats rapidly while simultaneously facing questions about organisation, discipline, leadership and how its representatives operate once elected.
The new voting system could change the calculation
The transformation of the Senedd’s electoral system may also make Wales an especially important testing ground for Reform and its competitors.
Under the previous system, constituency seats were elected using first past the post, while regional seats were allocated proportionally. From 2026, all 96 Senedd members are elected through the new closed proportional-list system.
That means parties do not necessarily need to dominate individual constituencies to gain representation.
A party with a substantial but geographically dispersed vote can potentially win seats across multiple constituencies.
For Reform, that creates an opportunity to turn broad national support into a larger presence in the Welsh Parliament. For Labour, Conservatives, Plaid Cymru, the Greens and Liberal Democrats, it creates a different strategic environment in which retaining support across a constituency becomes important even when outright first place is not guaranteed.
It also means that future comparisons with Westminster elections need to be made carefully. A party’s performance in a proportional Senedd election cannot simply be translated into an equivalent number of Westminster seats.
Is Britain’s political map really changing?
There is evidence of change, but the pattern is not uniform.
Reform’s rise in Wales is one part of a broader political realignment that has affected traditional party loyalties. Yet the emergence of Plaid Cymru as the largest force in the Senedd also demonstrates that the Welsh electorate cannot simply be understood through the same political divisions that dominate Westminster.
The Hakin result adds another small piece to that picture.
For Reform supporters, the victory offers a concrete example of the party moving into territory where it previously had no elected representation at county level. For its opponents, the low turnout and unusual circumstances of the contest provide reasons to avoid treating the result as a straightforward national referendum on Reform.
Both observations can be true at the same time.
The more meaningful test will be whether Reform can convert individual victories into a durable local-government organisation, retain its Senedd representation and continue attracting voters in places where Labour, Conservative, Plaid Cymru and independent candidates have traditionally competed.
That process will take considerably more than one by-election.
But the political map has undeniably already changed in Wales.
The 2026 Senedd election produced a parliament in which Plaid Cymru and Reform together hold 77 of the 96 seats, while Labour ceased to be the largest party for the first time since devolution.
The Hakin by-election therefore arrives in a political environment that is already considerably different from the one that existed only a few years ago.
The question now is not whether Britain’s political landscape is changing at all.
It is how far those changes will spread, whether they will endure, and whether parties such as Reform can turn electoral breakthroughs into long-term political organisation.
Hakin is one result.
Wales is a much bigger test.