Scottish secretary warns Johnson: no-deal Brexit could split UK

David Mundell says Nicola Sturgeon would use October exit to push for independence. Boris Johnson is being warned that embracing a disruptive no-deal Brexit would fuel nationalism in Scotland and risk the future of the union, as both opponents and supporters predict that he will now claim a decisive victory in the Tory leadership election. With Johnson seemingly weeks away from entering Downing Street, the Scottish secretary, David Mundell, issues a thinly veiled warning to him that Nicola Sturg