Theresa May to Steer Clear of Parliament Vote in Invoking Article 50 on Brexit.  British Prime Minister Theresa May intends to formally trigger Article 50 of the Lisbon Treaty. MOSCOW (Sputnik) – British Prime Minister Theresa May intends to formally trigger Article 50 of the Lisbon Treaty that starts the legal process for the United Kingdom to exit the … Continue reading Article 50 is an optional two year period of notice