LONDON, ENGLAND - FEBRUARY 01: Protestors demonstrate against Brexit in Parliament Square, opposite the Houses of Parliament on February 1, 2017 in London, England. The European Union (notification of withdrawal) bill that will trigger article 50 is being debated by MPs over two days. The vote will take place on Wednesday evening. Labour MPs are subject to a three-line whip after Jeremy Corbyn urged his party to vote for Article 50. (Photo by Leon Neal/Getty Images)
