The president of the European Council, Donald Tusk, said the chances of the UK staying in the EU are as high as 30% as the country would be likely to reject Brexit in a second referendum, the Guardian reported, citing Tusk's interview with the Polish newspaper Gazeta Wyborcza.  

He also claimed the British public had only truly debated Brexit after the 2016 referendum and there was a significant reason to believe the leave vote could be reversed.

Describing the decision by the former British prime minister, David Cameron, to call the vote as a political miscalculation, the block's official said he would expect a different result in a vote today given what had been learned about the consequences of leaving.

“The referendum was at the worst possible moment, it is the result of a wrong political calculation,” Tusk said in an interview with the Polish newspaper Gazeta Wyborcza.

“A real debate about the consequences of Brexit wasn’t had during the referendum campaign, but only after the vote. Today the result would probably look different. Paradoxically, Brexit awoke in Great Britain a pro-European movement.”