Nigel Farage (front), the leader of the United Kingdom Independence Party (UKIP) reacts with supporters, following the result of the EU referendum, outside the Houses of Parliament in London, Britain June 24, 2016.TOBY MELVILLE/Reuters
Britain's Prime Minister David Cameron speaks after Britain voted to leave the European Union, outside Number 10 Downing Street in London, Britain June 24, 2016.STEFAN WERMUTH/Reuters
Vote Leave supporters smile as they gather to listen to Nigel Farage, the leader of the UK Independence Party speaking to the media on College Green in London, Friday, June 24, 2016.Matt Dunham/The Associated Press
Leader of UKIP and Vote Leave campaign Nigel Farage speaks to the assembled media at College Green, Westminster.Mary Turner/Getty Images
Leave supporter Christine Forrester celebrates with others outside Vote Leave HQ, Westminster Tower on June 24, 2016 in London, England.Chris J Ratcliffe/Getty Images
Flowers are displayed in the words 'Please Stay' in front of the UK representation to the EU office in Brussels on Friday, June 24, 2016.Virginia Mayo/The Associated Press
Leave supporters cheer results at a Leave.eu party in London, Britain.Toby Melville/Reuters
A Scottish bagpiper plays outside the house of former London Mayor and Vote Leave campaigner Boris Johnson in London on June 24, 2016.JUSTIN TALLIS/AFP / Getty Images
Supporters of the Stronger In Campaign react as results of the EU referendum are announced at the Royal Festival Hall, in London, Britain.Rob Stothard/Pool/Reuters
Supporters of the Stronger In Campaign react as results of the EU referendum are announced at the Royal Festival Hall London, Britain.Rob Stothard/Getty Images
A trader monitors financial data on computers screens at ETX Capital, a broker of contracts-for-difference, in London, Britain.Chris Ratcliffe/Bloomberg
Supporters of leaving the EU celebrate at a party hosted by Leave.EU in central London .Stefan Rousseau/The Associated Press
Ballots are counted at the Glasgow count centre at the Emirates Arena, Glasgow, Scotland.Robert Perry/AFP / Getty Images
Ballots are sorted after polling stations closed in the Referendum on the European Union in Islington, London, Britain.Neil Hall/Reuters
Remain supporters celebrate a result at a referendum party at the Lexington pub in London.Andrew Testa/The New York Times
A teller counts ballot papers at the Titanic Exhibition Centre in Belfast, Northern Ireland.Liam McBurney/The Associated Press
People react to a regional EU referendum result at the Leave.EU campaign's referendum party at Millbank Tower in London, Britain.Jack Taylor/Getty Images
Workers begin counting ballots after polling stations closed in the Referendum on the European Union in Manchester, Britain.Andrew Yates/Reuters