Nigel Farage has announced he will stand as a candidate in Clacton, Essex, for Reform UK in the general election on 4 July.
Last week, he ruled out putting himself forward, instead promising to help what was Richard Tice’s party as it campaigned across the country.
But speaking at a press conference on Monday, Mr Farage announced the U-turn, and also confirmed he would take over from Mr Tice as leader of Reform for at least the next five years.
Politics live: Farage to stand and take over as Reform leader
Mr Farage claimed he had a “terrible sense of guilt” for not putting himself forward when the election was called, saying he felt he was “letting [his supporters] down”.
He then described how he had a “normal day” on Sunday to “reflect” on his decision, where he “walked the dog, did some fishing, popped in the pub”, and then made his choice.
“I’ve changed my mind,” the leader said. “It’s allowed you know, it’s not always a sign of weakness. It could potentially be a sign of strength.
“So I am going to stand in this election. I’ll be launching my candidacy at midday [on Tuesday] in the Essex seaside town of Clacton.”
Mr Farage added: “I can’t turn my back on the people’s army. I can’t turn my back on those millions of people who followed me, believed in me despite the horrendous things that were being said about me.”
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There had been questions hanging over what role Mr Farage would play in the election, whether that be as a candidate to stand against the Tories or whether he could broker an election pact with Rishi Sunak.
But his decision is sure to worry those on the right of the Conservative Party, who fear they could lose some traditional voters to Reform UK – especially with Mr Farage at the helm.
It may also allow him to take part in some of the wider television debates, seen as key for smaller parties to get their messages across to the electorate.
Earlier, Mr Sunak downplayed the impact Mr Farage could have if he chose to stand as an election candidate, telling reporters: “One of two people will be prime minister – either Keir Starmer or me.
“A vote for anyone who’s not a Conservative candidate is just a vote to put Keir Starmer in Number 10.”
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But going on the attack in his speech, Mr Farage said the current contest was the “dullest, most boring campaign we have ever seen in our lives”, accusing Mr Sunak and Sir Keir of “sounding the same”.
Mr Farage said: “There is a rejection of the political class going on in this country in a way that has not been seen in modern times.
“So the really big message here is what I’m really calling for, and what I intend to lead is a political revolt… a turning of our backs on the political status quo. It doesn’t work.
“Nothing in this country works anymore. The health service doesn’t work, the roads don’t work, none of public services are up to scratch. We are in decline and this would only be turned around with boldness.”
He added: “Make no mistake, we are unashamedly patriotic. We believe that it’s right to put the interests of British people first.
“We believe Brexit needs to be implemented properly and we are going to be the voice of opposition. And I tell you what, I’ve done it before. I’ll do it again. I’ll surprise everybody.”
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The other candidates standing in Clacton are:
Matthew Bensilum, Liberal Democrats
Natasha Osben, Green Party
Jovan Owusu-Nepaul, Labour Party
Giles Watling, Conservatives