That's all from us today. Here's a recap of the day's headlines:

• The Lib Dems and SNP lost their legal challenge over Tuesday night's election debate
• Boris Johnson and Jeremy Corbyn will go head-to-head in the live debate on ITV
• The SNP's Westminster leader, Ian Blackford, condemned the decision to exclude the two smaller parties as a "democratic disgrace", adding that it "discriminated against Scottish voters"
• The Lib Dems said the court's decision was "incredibly disappointing" and they are considering an appeal
• Meanwhile, the Conservative, Labour and Lib Dem leaders have been addressing business lobby group the CBI
• Mr Johnson shelved plans to cut business rates, arguing it was better to spend money on the NHS and other public services
• Jo Swinson pledged to scrap business rates altogether - replacing the tax with a commercial landowners' levy
• And Mr Corbyn promised he would invest billions in the nation's infrastructure, education and skills training

The latest episode of Electioncast is now available to watch on iPlayer.

Adam Fleming and Laura Kuenssberg discuss the business-heavy day on the campaign trail.

Joey D'Urso and Marianna Spring from BBC Trending talk about the latest developments in digital campaigning.

And Jeremy Vine calls in from Belfast.

Watch the latest episode here.

Image source, John Thomas

The chair of Leicester East Labour Party, John Thomas, has said he is resigning from the Labour Party and has called Jeremy Corbyn "a clown".

He says in the letter he has "nothing in common with" the Labour Party under its current leadership.

Leicester East has selected a new candidate, Claudia Webbe, after Keith Vaz announced he would stand down in this election.

Ms Webbe is currently a Councillor in the London Borough of Islington.

Labour have been contacted for a response.

Image source, AFP/Getty Images

Former journalist and Conservative peer, Baroness Wheatcroft, has said she is backing the Liberal Democrat candidate for the Cities of London and Westminster seat, Chuka Umunna.

Baroness Wheatcroft told the London Evening Standard that she had previously always supported the Conservatives but could not do at this election.

Earlier in the year, she spoke in the House of Lords, backing further referendum on EU membership and said the rich could be protected from Brexit by moving their money offshore.

Mr Umunna resigned from the Labour Party at the beginning of the year to join a new Independent Group of MPs and then became a Liberal Democrat.

Members of the House of Lords cannot vote in general elections.

You can see the full list of candidates standing in the Cities of London and Westminster seat, here.

Radio 4 PM

Boris Johnson's relationship with US businesswoman Jennifer Arcuri was back in the spotlight today, after she accused him of "ignoring and blocking" her following the controversy.

It is alleged that she received favourable treatment during Mr Johnson's time as mayor of London because of their friendship - claims they both deny.

Asked whether he believes the pair had an affair, Business Minister Nadhim Zahawi says that is "not my belief".

“Jennifer herself has said today that there was absolutely no issue around conflicts [of interest] and she won the business fair and square when it came to being awarded the funding," he tells BBC Radio 4's PM programme.

“The prime minister has said everything he needs to say on this.”

He adds that the issue is "completely irrelevant to what people want to hear about" during a general election campaign.

Radio 4 PM

One of the key moments of Boris Johnson's speech to the CBI earlier was when he announced that planned cuts to corporation tax would be put on hold.

Asked why the decision was made, Business Minister Nadhim Zahawi says it is "part of our focus on public services".

“I think Boris quite rightly wants to make sure the investment is targeted towards the NHS," he tells BBC Radio 4's PM programme.

In his speech, Mr Johnson said the £6bn saved by the move would spent on the NHS and other services.

However, the announcement does not mean any new money for the NHS, on top of the £20bn extra a year the Conservatives are promising to give it up to 2023.

BBC News Channel

Both Boris Johnson and Jo Swinson made pledges on business rates in their speeches at the CBI today, promising to reduce the tax burden on businesses.

However, Chris Ireland, chief executive of international property consultancy JLL, questions how significant the impact of these policies would be.

On Mr Johnson's plans for a a review of business rates in England he says: "Is that going to make a fundamental difference? Is that going to be the saviour of the retail sector in isolation? I don’t think so.”

Mr Ireland is also sceptical about the Lib Dem leader's promise to scrap business rates altogether - replacing them with a levy paid by commercial landlords.

He says this would simply pass the burden on to landowners.

Radio 4 PM

This morning Labour appeared to be backing away from its plan for net zero carbon emissions by 2030, which was approved at the party's conference.

Instead, shadow international trade secretary Barry Gardiner told the Today programme Labour was committed to "a net zero economy well before 2050".

But shadow transport secretary Andy McDonald is now denying that Labour are abandoning the pledge.

"We’ve said consistently and we said it at conference that we’ll be working towards a path to net zero emissions by 2030 and that remains the position," he tells BBC Radio 4's PM programme.

“It hasn’t moved one iota," he adds.

However, he admits the target does "present challenges and we’ve got to make sure we’ve got the skills and infrastructure to do it".

Image source, Getty Images

Liberal Democrat President Sal Brinton describes the High Court ruling on ITV's election debate as "incredibly disappointing".

Asked if the party will appeal against the decision, she says they will “have to see the written judgement".

However, she says the current system where broadcasters decide what they think is appropriate is "not transparent and it's not accountable".

"There needs to be legislation change," she adds.

Liberal Democrat Layla Moran says it is "outrageous" a Remain voice is missing from the ITV debate.

"The court ruled against us. But the fight must continue," she says in a tweet.

"It's simply wrong of broadcasters to present a binary choice and preempt the decision of the people in a general election."

Image source, Getty Images

Reacting to the High Court decision, the SNP's Ian Blackford describes his party's exclusion from ITV's head-to-head election debate on Tuesday as "a democratic disgrace".

"The fact that election law and broadcasting codes allow such gross unfairness is unacceptable," he adds.

“This election is a chance for people in Scotland to vote to escape Brexit, to protect the NHS and to choose their own future with independence – yet they will not hear that argument in the debate tomorrow night," he says.

“Instead, they will only hear from the leaders of two parties who both want to pursue Brexit - taking Scotland out of the EU against its will – who want to lock Scotland into the union."

He argues that excluding the SNP leaves Scottish voters who voted in favour of independence and remaining in the EU "completely ignored".

Mr Blackford repeats calls for decisions on TV debates to be made independently of politicians and broadcasters - and for Boris Johnson and Jeremy Corbyn to commit to an all-party debate on 1 December.

Tom Symonds
Home Affairs Correspondent

It took the two judges just a matter of 10-to-15 minutes to reach a decision about the claim from the Lib Dems and the SNP that they should be allowed access to ITV's head-to-head debate between Jeremy Corbyn and Boris Johnson.

The judges came back and said they would not agree to that – effectively they refused to even hear the judicial review.

They said ITV was not exercising a public function - it’s a private broadcaster, albeit regulated – and therefore could not be subject to a judicial review.

But they also said that if the two parties had a complaint about the programme, they had a way of complaining to Ofcom, the regulator.

Now that can only be done after the programme is broadcast – but the judges said that was a way the two parties could raise their objections.

They also said that the editorial judgement made by ITV was not irrational and perverse and that they did not want, as judges, to get in the way of an editorial matter for a major broadcaster.

So the debate goes ahead tomorrow.

The full reasoning behind the judges' decision have yet to be given to the court - that will probably come tomorrow.

The Lib Dems, for one, are going to take a closer look before deciding what to do next.

BBC News Channel

The SNP's Kirsty Blackman describes the judges' decision as "hugely disappointing".

"It is a bit ridiculous that a huge number of party values will not be represented at the debate tomorrow night," she says.

Responding to the court's judgement on Twitter, the SNP says it is "the third largest party in the UK, the governing party of Scotland, the main Remain voice in Scotland, the main voice advocating Scottish Independence" and is "likely to hold the balance of power in next Parliament".

"Excluding [the] SNP from debates is ridiculous," the party adds.

Tom Symonds
Home Affairs Correspondent

Two High Court judges, Lord Justice Davis and Mr Justice Warby, said the case brought against ITV was not one in which the broadcaster could face a judicial review because it was not exercising "a public function" in law when it set the format of the debate.

They also said the Lib Dems and SNP had the right to complain to broadcasting regulator Ofcom about the programme after it had aired.

ITV are set to hold a head-to-head election debate between Boris Johnson and Jeremy Corbyn on Tuesday evening.

However, lawyers for both the Lib Dems and SNP had argued that the full range of views on Brexit and Scottish independence would not be represented on the show.

In court, the Lib Dem representative argued that Brexit was the "dominant" issue in the 12 December general election and that the "voice of Remain has been excluded" by ITV's decision not to include Ms Swinson.

While SNP Lawyer Philip Coppel QC said: "In the current, pluralistic political landscape it is simply not possible for a debate which only includes two parties to include 'all significant views'."

Two High Court judges have dismissed an attempt by the Liberal Democrats and the SNP to force ITV to include their leaders in a TV debate to be broadcast tomorrow.

Image source, EPA

And here's the CBI's take on Labour leader Jeremy Corbyn's speech. He promised huge investment, but also higher taxes for the richest and a programme of nationalisation of sectors like energy and water.

Director Dame Carolyn Fairbairn said: "It's time to see Labour open the door to real and lasting partnership with business, not stick with outdated ideologies that would close it in their face."

She said businesses shared "many of the same ambitions" as Labour on skills, climate change and "making sure that the proceeds of growth are felt across the country".

"The challenge is not what Labour want to achieve, it's how."

She welcomed "greater flexibility" on the apprenticeship levy and "a step up" in vocational training - another key policy area championed by Mr Corbyn this morning,

However, she said "false instincts for mass nationalisations and forcing inclusive ownership schemes onto thriving businesses does little more than frighten off investors from backing the UK, with pensioners and savers having to foot the bill."

After it took centre stage for today's electioneering, the CBI has responded in turn to each of the leaders' speeches - and promises.

Responding to Jo Swinson, director Dame Carolyn Fairbairn said the Lib Dems recognised "the broken business rates system needs fundamental reform".

However, she said the party's proposed solution - a commercial landowner levy - was "mired in complexity".

"It remains unclear how it would cut overall costs or provide a level playing field - much more detail will be needed," she added.