As the Labour leader pitches himself as the prime minister in waiting, we ask our UK Government Editor Stuart Biggs about Keir Starmer's major plans to reform politics and whether he can keep his massive poll lead until the next election. Britain's largest business lobby, the CBI, says the UK is facing a lost decade of growth if the government doesn't change its ways. Our Senior UK Economy reporter Philip Aldrick discusses the context and details with Bloomberg's Lizzy Burden and Stephen Carroll.  See omnystudio.com/listener for privacy information.