First Vice-President of European Commission in charge of Better regulation, Inter-Institutional Relations, rule of Law and Charter of Fundamental Rights Frans Timmermans (L) welcomes Britain's opposition Labour party Leader Jeremy Corbyn (R) prior to a meeting in Brussels on July 13, 2017. / AFP PHOTO / POOL / OLIVIER HOSLET (Photo credit should read OLIVIER HOSLET/AFP/Getty Images)
Shadow business secretary and the Labour Party's prospective parliamentary candidate for Streatham, Chuka Umunna, speaks at the launch of the Labour Party Education Manifesto for the general election in centrtal London on April 9, 2015. Britain is gearing up for a general election on May 7. AFP PHOTO / BEN STANSALL (Photo credit should read BEN STANSALL/AFP/Getty Images)
EU Brexit negotiator Michel Barnier (R) and British Labour Party leader Jeremy Corbyn walk prior to a meeting on July 13, 2017 in Brussels. Britain's Brexit bill, the subject of a furious row this week between Brussels and London, will not pose a "big threat" to public finances, the government's fiscal watchdog said on July 13. / AFP PHOTO / POOL / OLIVIER HOSLET (Photo credit should read OLIVIER HOSLET/AFP/Getty Images)
LONDON, ENGLAND - JULY 12: Britain's Prime Minister Theresa May sits next to the leader of Britain's opposition Labour Party, Jeremy Corbyn ahead of a speech from Spain's King Felipe at the Palace of Westminster on July 12, 2017 in London, England. This is the first state visit by the current King Felipe and Queen Letizia, the last being in 1986 with King Juan Carlos and Queen Sofia. (Photo by Hannah McKay - WPA Pool/Getty Images)
LONDON,UNITED KINGDOM - APRIL 22: Labour MP Chuka Umunna's general election campaign launch in Streatham on April 22, 2017 in London, England. (Photo by Nicola Tree/Getty Images)
