COULSDON, UNITED KINGDOM - JUNE 23: Voters brave the rain to register their votes in the EU referendum at their local polling station, in Farthing Downs park on June 23, 2016 in Coulsdon, United Kingdom. The United Kingdom has gone to the polls to decide whether or not the country wishes to remain within the European Union. After a hard fought campaign from both REMAIN and LEAVE the vote is too close to call. A result on the referendum is expected on Friday morning. (Photo by Mary Turner/Getty Images)