The u. K. And the European Union over what the backstop would mean for the relationship between ireland and Northern Ireland. What it does instead is replaces it allows the u. K. To leave the european customs union, but there would still be some checks. Between Great Britain and Northern Ireland. That is the major difference. It does also give the Northern Ireland assembly the opportunity to vote on those age thoseements on arrangements every four years. The Unionist Party in Northern Ireland says they do not back this new deal negotiated by Boris Johnson. The question is now can he get approval out of parliament on saturday. Are these changes enough to get the approval of parliament and how critical is the dup to getting the approval . Emma that is the big question. All of the action moving back to. He u. K. On saturday parliament will sit for a special saturday session where they will have the opportunity to vote on the deal. The arithmetic is difficult for Boris Johnson. He no longe