0h 35min, oct 24, 2025 y - Caerphilly By-Election

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Labour suffered its first parliamentary defeat in Caerphilly for 100 years as Plaid Cymru claimed victory in the Welsh Parliament by-election.

Nigel Farage's Reform pledged to "throw everything" at the campaign but its candidate, Llŷr Powell, could only finish second to Plaid's Lindsay Whittle, who took 47% of the vote with a majority of 3,848.

Prime Minister Sir Keir Starmer said he was "deeply disappointed" at the loss, adding: "We clearly need to do much more."

The result saw a swing of 27% from Labour, which has held the seat in Westminster since the 1920s and in the Senedd since it began at the turn of the century.

Whittle promised to work like "a Trojan for every man, woman and child".

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