Plaid Cymru is confident it can go on to win Labour “strongholds” after falling agonisingly short of a recent by-election victory.

The leader of the Plaid group in the Caerphilly County Borough Council’s chamber believes the result is a positive sign his party can challenge across the borough at the 2027 local government elections.

A single vote separated Labour winner Christine Bissex-Foster and Plaid candidate Joshua McCarthy in the race to become the new county councillor for the Aberbargoed and Bargoed ward on August 15.

Mark Thomas, the candidate for the Green Party, finished third in the by-election.