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Dan Thomas resigns as Reform Wales leader after arrest

Dan Thomas has stepped down as Reform UK's Welsh leader following his arrest by Gwent Police on Sunday over suspected assault and coercive behavior.

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Inewgen
16 Sep 2026Source: BBC Politics4 min read (0 views)
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Dan Thomas resigns as Reform Wales leader after arrest

Stock photo for illustration only, not from the actual event

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  • Dan Thomas has resigned as Reform Wales leader due to personal reasons.
  • He was arrested by Gwent Police on Sunday on suspicion of assault and coercive behavior.
  • Thomas stated he was released without charge following the weekend incident.
  • The resignation coincided with Reform MS Sarah Cooper-Lesadd defecting to Plaid Cymru.

Dan Thomas, the leader of Reform UK in Wales, has officially stepped down from his post following his arrest by law enforcement over the weekend. Gwent Police confirmed that a 45-year-old man originating from Aberbargoed within the Caerphilly area was detained on Sunday on suspicion of assault alongside controlling or coercive behavior, before being released on bail pending further investigative procedures.

Thomas, who was personally appointed as the Welsh party leader by Nigel Farage back in February, skipped the First Minister's Questions session earlier in the day. He had recently secured a seat representing Casnewydd Islwyn during the Senedd elections in May, an electoral cycle where his party dramatically scaled its presence in Cardiff Bay from merely two politicians up to a formidable total of 34 elected members.

34Reform Senedd members elected in May
45Age of the man arrested by Gwent Police

Addressing his departure, Thomas expressed that leading Reform Wales from zero to 34 members and establishing it as the largest opposition group in Welsh history was the absolute honor of his life. He noted with deep regret that he was stepping down due to personal reasons, clarifying that after being reported to police over the weekend, he was released without any charges being laid. Furthermore, Thomas emphasized his ongoing commitment to serving his constituents in Casnewydd Islwyn and extending full backing to whoever the group appoints as his successor.

UK political press conference interior

Stock photo for illustration only, not from the actual event

"Reform UK is descending into chaos."

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Marc Jones, Plaid Cymru Senedd group chair

Political opponents were swift to react to the leadership crisis, with Plaid Cymru Senedd group chair Marc Jones remarking that Reform UK is descending into chaos. Welsh Labour leader Ken Skates described the development as incredible news that demands serious answers, asserting that Thomas's appointment by Nigel Farage highlights appalling judgment. Meanwhile, Conservative Shadow Secretary of State for Wales Mims Davies criticized Reform for capturing headlines for all the wrong reasons, citing massive crypto donations and the imprisonment of Nathan Gill for pro-Russian bribery. Welsh Liberal Democrat leader Jane Dodds added that the wheels are rapidly coming off Reform in Wales and across the entire country.

Context and Analysis: The sudden resignation of Dan Thomas marks a critical vulnerability for the populist party's expansion in Welsh politics following their breakthrough Senedd election results. Losing a prominent regional leader amid criminal allegations and concurrent defections threatens to undermine the party's institutional credibility as the official opposition, handing substantial political ammunition to established rivals like Plaid Cymru and Welsh Labour.

Before entering the Senedd under the Reform banner in June 2025, Thomas built a background in London's financial services sector and previously served as a Conservative councillor and council leader for Barnet in north London from 2019 until 2022. Having contested Islwyn in the 2010 and 2017 general elections for the Conservatives, he later led the Barnet opposition until May 2024 before defecting to Reform and relocating his family closer to relatives in south Wales.

Source: BBC Politics

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