May's four tests before she will sign off on Irish border backstop deal

Theresa May told MPs that four tests must be passed before she will agree to an Irish border backstop.There appear to be four new mini-red lines in relation to the Irish border issue.Reassuring the House of Commons that there would be no “carving up” of the United Kingdom, Theresa May unveiled four tests that must be passed before the UK will sign off on a backstop, or insurance policy, that the Irish border will remain open in the event of a no-deal Brexit.