UK Parliament debates Brexit customs union backstop deadline

British Prime Minister Theresa May on Monday defended her government's Brexit negotiations and attempted to assure British lawmakers that a “backstop” customs union arrangement with the European Union would only be temporary. The UK would not be able to enter into a trade agreement with the U.S. while it is in a customs union with the EU. Both the UK and EU have said that there must be backstop solution to maintain a frictionless border between Ireland and Northern Ireland...