In today’s newsletter: Labour has been decimated, Reform has taken up the official opposition, and the Senedd has expanded massively – taking the country’s new leadership into uncharted waters Good morning. While Westminster-watchers were obsessed with Labour’s leadership shenanigans, a new chapter in the relationship between Cardiff and the UK government opened. After claiming power in this month’s elections, Plaid Cymru has wasted no time in testing Keir Starmer’s “openness” to reform. In London, the party tabled an amendment to the king’s speech, calling for a number of justice, infrastructure and welfare powers to be devolved to the Senedd. UK news | A rescue deal for Thames Water is under threat because of a potential change in prime minister, government insiders have said. UK politic