Mr Farage’s fledgling outfit has the potential to be a major thorn in the side for the Tories, and he urged Mr Johnson to join him to "get Brexit done". Speaking in Westminster, he said: "I want to urge Boris Johnson to reconsider. "A general election is a chance to press the reset the button. "It's a chance to go in a different direction. "Drop the deal. As these weeks go by, people will not like it."
He warned if Mr Johnson refused to join forces, Brexit Party was ready to field candidates in every seat in England and Wales.
He added: "Please don't doubt that we are ready.
"Don't underestimate our determination or organisation."
Commenting on the latest IpsoMORI poll published yesterday, which put Brexit Party support at seven percent, Andrew Hawkins, chairman of ComRes, yesterday told Express.co.uk Mr Johnson’s chances of winning an overall majority would be significantly enhanced if the figure stayed in single figures.
The campaign will be launched at The Emmanuel Centre in Westminster this morning, with Mr Farage due to speak just after 11am.
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Boris Johnson is highly unlikely to accept Nigel Farage's offer (Image: GETTY)
2.21pm update: Scottish Tories rule out Brexit Party pact
Scottish Conservatives have dismissed the possibility of an alliance with the Brexit Party.
Launching an advertising van in Aberdeen ahead of the December 12 general election, Scottish Tory leader Jackson Carlaw said he does not support such a tie-up.
He said the Brexit Party will not be able to stop a second referendum on Scottish independence, which is the driving force behind the Scottish Tories' campaign.
Mr Carlaw was speaking hours after Brexit Party leader Nigel Farage offered Prime Minister Boris Johnson the chance of an electoral alliance between the two parties.
Mr Carlaw said: "I just think politics in Scotland are different.
"Because Nicola Sturgeon is making independence the central issue of this campaign, that's not something the Brexit Party can do anything to stop.
"You need to elect a strong Conservative government, with Conservatives from Scotland part of it."
1.52pm update: Tice underlines pact proposal
Brexit Party chairman Richard Tice has reiterated his party's offer of an electoral pact with the Conservative Party.
He tweeted: "We’ve made a reasonable compromise offer to the Tories. Drop the terrible Withdrawal Agreement and take 6 months to negotiate a simple Free Trade Deal using Article 24 of WTO rules.
"If so we can support Boris to build a powerful Leave Alliance to ensure a big majority."
1.09pm update: Farage is right, says Lib Dem leader Davey
Liberal Democrat deputy leader Sir Ed Davey said: "Nigel Farage is correct that the Conservative Party should be very worried about the Liberal Democrats in this election.
"We are the strongest national party of Remain and we are ready to take the fight to Boris Johnson as well as Jeremy Corbyn.
"He is also right that Boris Johnson's Brexit deal would be a disaster for the UK.
"Every form of Brexit will be damaging for our country."
12.45pm update: Farage names Christmas wishlist
Mr Farage added: "Do you know what? I get on fine with Mr Johnson.
"He's the boss. And I fully accept that. I don't want anything out of this.
"I'm not asking for any rank, any title, any position. I don't want to be in the Cabinet. I'm not asking for any of those things.
"I just want to actually get us a proper Brexit so we can be an independent country. That's all I'm asking."
Asked what his message to Mr Johnson is, he said: "Drop the deal and let's pursue a proper Brexit."
12.34pm update: US "worried" about Boris's deal, says Farage
Mr Farage, asked about how pleased he was that Mr Trump criticised Mr Johnson's Brexit deal, said: "Well I'd known for some time that members of the American administration were very, very worried about what had been signed up to.
"And Trump made it clear that basically if we go along with the terms of this there'll never be a trade deal with the USA.
"But think of the implications of that for India, Australia and many other parts of the world.
"This is not the way forward."
He said the EU's chief negotiator Michel Barnier has got the the UK "in a trap", adding: "This election is the chance to break free of it."
US President Donald Trump has criticised Mr Johnson's deal with the EU (Image: GETTY)
12.30pm update: "A vote for Farage risks letting Corbyn into Number 10," says Cleverly
Tory chairman James Cleverly was also dismissive of Mr Farage's idea, saying: "A vote for Farage risks letting Jeremy Corbyn into Downing Street via the back door - and the country spending 2020 having two referendums on Brexit and Scottish independence.
"It will not get Brexit done - and it will create another gridlocked Parliament that doesn't work."
12.28pm update: "We don't do electoral pacts"
Boris Johnson is certain to rebuff Nigel Farage's offer, suggested Steve Swinford, The Times' deputy political editor.
Mr Swinford tweeted: "Perhaps unsurprisingly Boris Johnson won't be taking Nigel Farage up on his offer
"Senior Tory source: 'A vote for anyone other than Boris risks Brexit
"'We don't do electoral pacts'."
12.15am update: How Brexit lies in hands of hardline EU leaders – Macron and Michel poised to act
European leaders have endured a year of Brexit uncertainty – and to compile that misery further, they will spend the next five weeks watching Boris Johnson’s general election campaign with trepidation.
For the EU27, the last two months of 2019 were meant to be about moving forward with their lives.
Multi-billion euro budgets, the accession of Albania and North Macedonia and even the bloc’s post-Brexit relationship with Britain should have been at the centre of their decision making processes.
Instead, leaders are bracing themselves for further – to coin a well-known phrase – dither and delay as the next British government seeks to deliver Brexit. Of course, EU leaders are desperately hoping for a strong majority that allows the current withdrawal agreement through Parliament as quickly as possible.
12.08pm update: "Boris's deal is simply not Brexit"
Asked why people should vote for the Brexit Party, Mr Farage said: "Because we stand for Brexit. And at the moment we're the only party in England, Scotland and Wales that believes in Brexit.
"Brexit is about us becoming an independent country - being free, being able to make our own decisions, not under the rule book of the European Union.
"The problem with Boris's new EU treaty is that it keeps us tied to EU rules, costs us a fortune, but what it really does is kick the can down the road for a further three years of agonising negotiations.
"It's simply not Brexit."
11.48am update: "Cummings is a charming chap"
Brexit Party leader Nigel Farage was diplomatic when asked by journalists about whether he could work with Boris Johnson's special adviser Dominic Cummings, despite saying earlier this year he "could not be trusted" in Number 10.
Mr Farage said he is sure Mr Cummings is a "charming chap" and "easy to work with".
However, he claimed that in trying to convince people about his Brexit deal Mr Johnson is "trying to sell a second-hand motor".
11.42am update: Farage tight-lipped on whether he will stand
Mr Farage would not say whether or not he is standing in the election, saying that would become clear in the coming days.
He said the campaign launch is about the party making clear it is "very, very prepared to compromise".
He added that the only way to get Brexit done is to "form a Leave alliance" and win the election with a "big stonking majority".
11.38pm update: Farage talks up "informal arrangements"
Without specifying which candidates or parties he was talking about, Mr Farage said: "Already we are being approached to put together informal arrangements on the ground - constituencies in which they may have a better chance of winning and we won't bother to campaign, but equally constituencies in which we have got a better chance of winning and they won't campaign and that is already beginning to come together.
"But that is not the real deal. The real deal is a Leave alliance that wins a big majority in Parliament.
"The real deal is a Leave alliance that delivers a genuine Brexit."
11.29am update: Farage gives Johnson two weeks to accept offer
Mr Farage said 150 Labour held seats have never been won by the Conservatives, suggesting that could be a part of the possible non-aggression pact.
He gave Mr Johnson until November 14 to accept his offer.
Mr farage said his party was “open and flexible”, stressing that where MPs opposed the brexit deal in favour of a free trade agreement, he would view them as friends and not enemies.
11.17am update: Farage proposes "Leave alliance"
Mr Farage appealed to Boris Johnson to join him in a Leave alliance to "get Brexit done".
However, if he refused, he stressed the Brexit Party was ready to field candidates in every seat in England and Wales.
He added: "Please don't doubt that we are ready.
Don't underestimate our determination or organisation."
Nigel Farage talks at the launch (Image: GETTY)
11.12pm update: "Boris should reconsider"
Claiming the Prime Minister's deal did not "get Brexit done", Mr Farage added: "I want to urge Boris Johnson to reconsider.sonos sonos One (Gen 2) - Voice Controlled Smart Speaker with Amazon Alexa Built-in - Black read more
"A general election is a chance to press the reset the button.