British Prime Minister Theresa May will learn on Tuesday whether parliament must agree to the triggering of Britain's exit from the European Union, potentially giving lawmakers who oppose her plans a chance to amend or hinder her Brexit vision. The UK Supreme Court will give its ruling at 9:30 a.m. (0930 GMT) in a landmark case on whether May can use executive powers known as known as "royal prerogative" to invoke Article 50 of the EU's Lisbon Treaty and begin two years of divorce talks. Challengers, led by investment manager Gina Miller and backed by the Scottish government and others, say May must first get ... (full story)