The Brexit debate has resurfaced in Britain as over 100 MPs support a bill from the Liberal Democrats for a bespoke UK-EU customs union to reduce trade barriers. Despite some backing from Labour MPs, government support remains unlikely. Starmer opposes re-entering a customs union, fearing it would disrupt existing trade deals. The Liberal Democrats claim their proposal could boost the UK economy, but economists are divided on its potential benefits. The EU's willingness to negotiate a new agreement is uncertain, though relations have improved under Starmer's leadership.