Wales has been hit by a political earthquake – and the UK government is in a very tricky position | Will Hayward

If Starmer’s Labour refuses to concede more powers to Plaid Cymru, the triumphant independence party, it will only accelerate its own decline

On Saturday, I stood on the steps outside the Senedd, listening to the leader of Plaid Cymru, Rhun ap Iorwerth, take questions from the media. It was one of those rare moments of almost feeling history being made. As one of the other journalists said to me: “I have never seen a political event like this in Wales.”

A crowd of Plaid supporters had gathered to welcome their 43 new MSs. People were giddy with excitement: for the first time since the party was founded just over 100 years ago, it was about to form the next Welsh government. And for the first time in Wales’s history, the country’s highest-ranking political representative would be from a party committed to securing independence – to breaking away from the United Kingdom. Some of the Senedd members were crying. The crowd starting singing the Welsh national anthem, Hen Wlad Fy Nhadau, and were joined by the assembled politicians.

Will Hayward is a Guardian columnist. He publishes a regular newsletter on Welsh politics