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Nigel Farage has said the government’s “sell out” on Brexit may leave him with no choice other than to return as UKIP leader.

Mr Farage said it is something “he never thought he would do”, but plans to stand again as the party leader when current leader Gerard Batten’s term ends in March next year.

Making the announcement, Farage blasted Theresa May and her government, calling the Prime Minister “appalling.”

His announcement comes after Brexit secretary David Davis and Foreign Secretary Boris Johnson resigned over Mrs May's planned Brexit deal.

Mr Farage, who quit as leader following the 2016 EU referendum result, called on Conservative MPs to hold a vote of no confidence over the Prime Minister.

Speaking on his regular LBC radio phone-in, Mr Farage said: "I've already said that if Article 50 gets suspended beyond March 29, I will put myself back into full-time campaigning.

"I will add to that tonight. Gerard Batten, who is the leader of UKIP and has my confidence and support - his term as leader comes to an end in March of next year.

"There will be a leadership contest within UKIP in March next year. If Brexit is not back on track, if we're not actually going to be leaving and if this Chequers agreement has not been broken, I will very seriously consider putting my name forward to run as leader of UKIP again.

"I can assure any Conservatives listening to this, sitting in marginal seats, who are not prepared to stand up and honour the wishes of the electorate, I will make damn sure in that situation that you all lose your seats.

"Because there are millions of Conservative voters very unhappy indeed."

Writing for the Telegraph, Mr Farage added: “I never wanted a career in politics. I only ever wanted to stop the country I love being sucked further into a political and economic union which is most unnatural to the instincts of the majority of my fellow citizens.

“However, my own red line is that if Article 50 is suspended or delayed, I will have no choice but to resume campaigning in all parts of the United Kingdom.

“In March 2019, the current leader of UKIP, Gerard Batten, will reach the end of his term in office.

“Unless Brexit is back on track by then, I will have to seriously consider putting my name forward to return as UKIP leader.

“I never thought I would say that again, but the government’s sell-out leaves me with no choice. The latest Brexit betrayal must be reversed.”

In a message on Twitter, Mr Farage welcomed Boris Johnson's resignation, and suggested that Environment Secretary Michael Gove should follow him out of the Cabinet.

"Bravo @BorisJohnson. Now can we please get rid of the appalling @theresa-may and get Brexit back on track," wrote the former Ukip leader.

"Time for @michaelgove to decide. Party or country, career or principle?"

Eloise Todd, the chief executive of the Best for Britain campaign, said: "Of course Nigel Farage is so keen to force through Brexit - he's one of the elite establishment figures who have already benefited personally from the 2016 referendum.

"It might be hard to think of a messier, more disastrous situation than the one we're in now - but Farage back in politics is what that looks like."

Mr Farage served as Ukip leader between 2006 and 2009, and returned to the job between 2010 and 2016.

He took up the reins for a third time in September and October 2016 after Diane James's surprise resignation after 18 days as leader.

Additional reporting by Press Association