A new opinion poll in Wales for the Senedd (Welsh parliament) elections next year has put Plaid Cymru in lead with 30% of the vote share, with Reform on 25%, and support for Labour falling to a historic low of 18%.

The Barn Cymru poll was conducted by YouGov for ITV Cymru Wales and Cardiff University.

If replicated at next year’s Senedd elections it would be Labour’s worst result since the advent of devolution.

The Senedd voting intention (YouGov MRP Model) is as follows:

Responding to the poll, a Plaid Cymru spokesperson said: “More and more people are turning to Plaid Cymru as the only party standing up for Wales’s interests, offering a credible pro-Wales government in 2026.

“The Labour party has betrayed those who put it into power at Westminster, and Eluned Morgan has gone along with it, proving she is no more than an apologist for Keir Starmer.

“As voters turn their backs on Labour, the choice in the 2026 Welsh General Election is clear. A Plaid Cymru government led by Rhun ap Iorwerth with a positive vision and not afraid to stand up to Labour, or Reform UK led by work-shy ex-Tory Nigel Farage whose real interest lies in cosying up to Donald Trump.

“Unlike Labour who have taken the support of steelworkers, pensioners, business owners and the most vulnerable in society for granted – we will continue to work hard to make the case that a Plaid Cymru government will bring about a fairer, more ambitious Wales.”