Brexit is climbing its way back up the political charts again. Rishi Sunak says his government won't align with European Union rules, while Keir Starmer has told the CBI conference the UK needs to reduce trade barriers with the EU. Our political reporter Ellen Milligan brings us the latest. Plus: Former Liberal Democrat leader Tim Farron joins Bloomberg's Stephen Carroll and Yuan Potts to discuss his new book on why Christians should get involved in politics.