Nigel Farage told fellow MEPs "you're not laughing now" as he was barracked and booed at an emergency meeting of the European Parliament to discuss Brexit.
At a highly charged session in the Brussels chamber, EU Commission president Jean-Claude Juncker also questioned why the Ukip leader had attended the session following the Brexit vote.
Nigel Farage was greeted with jeers as he stood in the European Parliament - and taunted MEPs by saying: "You're not laughing at me now".
"When i came here 17 years ago and I said I wanted to lead a campaign to get Britain to leave the European Union, you all laughed at me," he said.
"Well I have to say you're not laughing now, are you?
"And the reason you're so upset, the reason you're so angry has been perfectly clear from all the angry exchanges this morning - you as a political project are in denial."
The Democratic presidential candidate may also have shown his cards on his choice of running mate.
The US president also shared a post on Twitter accusing Dr Anthony Fauci of misleading the public over hydroxychloroquine.
Fears over an impending second wave of coronavirus dominates Wednesday’s front pages.