Mayor of London Sadiq Khan speaks during an interview in London, Monday, Jan. 12, 2026. (AP Photo/Kirsty Wigglesworth) Labour should include a pledge to rejoin the European Union in the party’s next general election manifesto, Sadiq Khan has declared. In comments which will be seen as a direct challenge to Keir Starmer, the London mayor said it was time for the party to “be bold”. In an interview with Italian newspaper La Repubblica, Khan repeated his call for Britain to rejoin the EU customs union and single market in this parliament – a move already ruled out by the prime minister. But he said Labour should go even further by pledging to take the UK back into the EU if it wins the next election, which is expected in 2029. Khan said: “I’m quite clear. On the ballot paper of the next general election is a vote for Labour, a vote to rejoin the European Union, and we should be unequivocal about the benefits of the European Union because we’ve now seen the alternative. “We’ve now seen what happens when you’re outside the European Union: less investment in the UK, less exports to the European Union.” Related... Keir Starmer Slammed By Sadiq Khan In Wake Of By-Election Humiliation Keir Starmer Slaps Down Sadiq Khan Over 'From The River To The Sea' Chant Sadiq Khan Joins Labour Backlash As Rebellion Against Starmer's Welfare Cuts Grows