Parliament must vote on triggering Article 50 - Supreme Court

The judges voted by a majority of 8:3 that Prime Minister Theresa May cannot use the Royal prerogative to trigger Article 50. The Supreme Court also ruled devolved governments do not have a veto on the UK's decision to withdraw from the EU. The decision came following Gina Miller's challenge in October 2016 that contested the government's authority to proceed with Brexit without asking parliament, arguing the principle of parliamentary sovereignty underpins the constitution and rule of law in the country.  Supreme Court president Lord Neuberger said: "The referendum is of great politi...