Taking the stage to wild applause, Mr Farage said he came "with a message of hope and optimism".

"We did it - we made June 23 our independence day when we smashed the establishment. We reached those people who have never voted in their lives but believed they could take back control of their country, take back control of their borders, and get back their pride and self-respect."

While he didn't explicitly endorse Mr Trump for president because it would be wrong for a foreign politician to intervene in a US election, he made it clear who he would not vote for given the chance.