Heidi Allen: “The fact people are trying to pick holes shows we must be a bit of a threat”

Ever since she railed against George Osborne’s welfare cuts, Heidi Allen’s relationship with the Conservatives looked fragile. After months of feeling disillusioned with her adopted party, she helped to form The Independent Group. Now interim leader of the rebranded Change UK, the South Cambridgeshire MP is hopeful for success at the European elections – but says Brexit cannot be everything that her party’s about. She talks to Sebastian Whale