Boris Johnson's been touring the Union as a 'no deal' exit looms, trying to reassure those worried about the divorce with the EU. Boris Johnson started the tour in Edinburgh. He was met with jeers and boos from protesters, which forced him to leave by the back door of Bute House, the official residence of Scotland's First Minister.

Inside, his host Nicola Sturgeon expressed her discontent with Johnson's Brexit plans. She spoke about a 'catastrophic, almost inevitable path to a no-deal Brexit'. Then it was on to Wales, where Johnson was seeking support for his Brexit plans from the country's agricultural sector. The Welsh farmers' union has warned him leaving the EU without a deal would cause 'civil unrest' in rural areas. Many British farmers rely heavily on trade with Europe, and a no-deal scenario could be costly for their business. And in Northern Ireland, his last stop, Boris Johnson didn't receive the warmest welcome either.

There's broad consensus that leaving the EU without a deal could be dramatic, because of the land border between Northern Ireland and the Republic of Ireland, which will become a border into Europe.