Nigel Farage was presented a silver tray of Ferrero Rocher chocolates and jokingly referred to as a 'diplomat' following President-elect Donald Trump's suggestion that he should become ambassador to Washington.

The Ukip leader was presented the chocolates, known for the famous TV ad showing Ferrero Rocher handed round at the ambassador's reception, at a reception at London's Ritz hotel celebrating his contribution to the battle to take Britain out of the EU.

He was introduced by Leave.EU spokesman Andy Wigmore - who joined Farage at Trump Tower - with a call for attention from "Ladies, Gents, Lords and... diplomats".

Farage told guests there would be a "seismic shock" at the next general election if Theresa May has not delivered Brexit by 2020.

And he said he would be sticking around to take part in the battles to come.

Mr Farage told the gathering: "We've got a problem. In America the revolution is total. Not only have the people spoken and won, but the old administration, Obama and all those ghastly people, are out and the Trump people are in.

"In this country, the people have spoken, but the same players have just been shuffled around the chess board and we are still being run by the career professional political class

"I am not sure what is going to happen over the course of the next couple of years but I suspect there's another big seismic shock in British politics perhaps going to come at the next election.

"I suspect that the Conservative party is not fit for the legacy of Brexit. I suspect there is going to be a genuine realignment of British politics over the course of the next three or four years.

"It is unfinished business - the people have spoken but the establishment don't want to listen. There are great battles to be fought and I'm going to go on fighting those battles."