Former Leader of Britain's opposition Labour Party, Ed Miliband, (L) listens as the current leader, Jeremy Corybn, delivers a speech on the merits of Britain remaining in the European Union (EU), in Doncaster on May 27, 2016. With just under four weeks to go until the June 23 referendum, the Remain camp is on 53 percent and the Leave campaign on 47 percent, according to the What UK Thinks website's average of the most recent six opinion polls. / AFP / Lindsey Parnaby (Photo credit should read LINDSEY PARNABY/AFP/Getty Images)

Former Leader of Britain's opposition Labour Party, Ed Miliband, (L) listens as the current leader, Jeremy Corybn, delivers a speech on the merits of Britain remaining in the European Union (EU), in Doncaster on May 27, 2016.
With just under four weeks to go until the June 23 referendum, the Remain camp is on 53 percent and the Leave campaign on 47 percent, according to the What UK Thinks website's average of the most recent six opinion polls. / AFP / Lindsey Parnaby        (Photo credit should read LINDSEY PARNABY/AFP/Getty Images)