Mandatory Credit: Photo by Rob Pinney/REX/Shutterstock (8519744as) Prime Minister Theresa May leaves 10 Downing Street on her way to deliver a statement in Parliament. Cabinet Meeting at 10 Downing Street, London, UK - 14 Mar 2017 The Article 50 bill successfully passed through Parliament yesterday evening, 13 March 2017, giving Prime Minister Theresa May the green light to trigger Article 50 which will begin Britain's departure from the European Union.