The Liberal Democrats are forcing a vote in parliament on creating a new customs union to put pressure on Labour MPs to take a more pro-EU stance. However, the Lib Dems are hoping to demonstrate support among pro-EU MPs for the idea of a new customs union. View image in fullscreen The Lib Dems’ bill will be voted on two weeks after the chancellor, Rachel Reeves, publishes her budget. “A customs union with the EU is the single biggest lever this government could pull to turbocharge the UK economy. Keir Starmer’s government has repeatedly said it does not want to join a customs union with the EU, saying it was a red line.