Image source, PA Media

Politicians crossing party lines in unexpected ways has become a major theme of this election, as debates continue about the best way to vote tactically.

Now a Green Party MEP is the latest to urge his party not to stand in certain seats. Magid Magid, MEP for Yorkshire and the Humber and a former Lord Mayor of Sheffield, is urging the Greens to stand aside in 44 Labour/Tory marginals.

On Twitter, external, he says "we are walking into inevitable disaster" after the Brexit Party and Tories formed an "unholy hard-right pact".

He acknowledges the difficulty of standing aside but says the top priority should be to stop the Conservatives "by any means necessary".

Away from Boris Johnson's speech for a moment, his government could face a legal challenge to its decision to delay the publication of a report into claims of Russian interference in UK elections.

The Bureau of Investigative Journalism has written to Boris Johnson demanding the report's publication before the election and giving him six days to respond. The bureau says it will launch a judicial review if he refuses.

The government said it needed more time to be vetted.

Image source, UK POOL

The PM says delivering the UK's exit from the EU will bring "complete stability and certainty" for businesses - adding that his Brexit deal is "ready to go".

He calls it a "Blue Peter deal", adding: "here's one I made earlier."

In contrast, he calls Labour's Brexit position "positively mind-boggling", and a Corbyn-led government would lead to more "division" and "delay".

From Jeremy Corbyn's perspective, he wants to negotiate what he says would be a better Brexit deal than Mr Johnson achieved and then put it back to the people in another referendum.

Continuing, Boris Johnson says the UK economy has "grown solidly" since the Conservatives have been in government.

He says the Tories want to "unite and level up" the UK - by investing in skills and boosting the national minimum wage.

However, he says this "One Nation programme" has been held up by a "paralysed Parliament" that has refused "time and again" to deliver Brexit.

He says "getting Brexit done" will not only result in a boost in the economy and foreign investment, but also improve the country's "psychological health".

What exactly does "get Brexit done" mean? We've had a closer look.

Image source, UK POOL

Boris Johnson is on his feet to start his campaign speech at an electric car manufacturer in the West Midlands.

Standing behind a podium with his slogan “Get Brexit Done” emblazoned across it, the PM pays tribute to the role of clean vehicles in tackling air pollution - he had a go at driving one a short time ago as we said.

He says the factory is representative of "my type of Conservative politics".

Nick Eardley
BBC political correspondent

The SNP announce they are taking legal action against ITV over its decision to exclude their leader from the channel's election debate next week.

This follows in the footsteps of the Lib Dems, who made a similar move on Monday.

ITV is hosting a primetime head-to-head between Conservative leader Boris Johnson and his Labour counterpart Jeremy Corbyn on 19 November.

Image source, Geograph/Marathon

A group of anti-Tory activists calling themselves Votey McVoteface urge boaters to register to vote in marginal seats.

Image source, Getty Images

The unusual circumstance of having a pre-Christmas election has raised a new concern - will political posters take the shine off your town's Christmas lights display?

Ulster Unionist candidate Tom Elliott fears they might, and he's pledging not to put up any in town centres in his Northern Ireland constituency after local traders raised concerns.

He says high streets will be "festooned with Christmas lights and decorations" and should not be "fighting for space with dozens of election posters".

It remains to be seen if rivals and candidates elsewhere will follow suit.

The general election is just over four weeks away - but do you understand how it works?

Our handy guide explains all.

Image source, AFP

In his speech shortly, Boris Johnson will promise to launch a “clean energy revolution” after Brexit, creating thousands of highly-skilled, highly-paid jobs.

The venue for the speech is an electric car manufacturer in the West Midlands so it's safe to assume the PM will address plans to accelerate production of battery-powered cars.

But the UK’s attempt to become a world leader in the field has suffered a blow with Tesla founder Elon Musk choosing Germany as the site for its first major European factory.

The US automotive company is to build an engineering and design centre in Berlin, building batteries, powertrains and vehicles.

According to Auto Express, Mr Musk decided against locating the plant in the UK due to concerns over Brexit. It quoted him as saying the UK was “too risky” an option.

The BBC’s economics editor Faisal Islam said it had long been an aim of government policy to attract a so-called “gigafactory” to the UK but international investors were yet to bite.

He said fears of a no-deal Brexit had affected industry investment, but even the current deal proposed by the government would involve checks for customs and the origin of parts that are problematic for the car sector.

If you're just joining us, here's a rundown of the main news so far today - it's a busy one:

• On a visit to flood-hit areas, Boris Johnson faced heckles from some onlookers for the government's response. He says he understands the strength of feeling as "you cannot underestimate the anguish that a flood causes". He'll give a big speech on Brexit in the next hour
• Speaking of Brexit, Nigel Farage accuses the Conservatives of putting "party before country" and risking splitting the Brexit vote - he's the second political leader in one day to turn up at a boxing club for an event
• Meanwhile, Jeremy Corbyn travels to Scotland where he says a Labour government will not back a second Scottish independence vote during its "first term" in power

• The SNP are unimpressed though - saying Labour are not competitive in many Scottish constituencies, where only they can beat the Tories. Policy-wise today, the SNP are talking climate change

• Labour is making big promises on the NHS, pledging to cut waiting times and boost mental health services by spending billions
• The Lib Dems pledge £500m a year for youth services - but leader Jo Swinson is under pressure over her decision not to work with Labour in certain seats

• The Greens outline plans for a new post of "carbon chancellor"
• And the Royal Mail wins its legal battle at the High Court to prevent a postal strike. The action had threatened to disrupt postal voting in the run-up to the election

Phew!

Instead of a red box, the Greens would have a grey one. Too many colours? The party's co-leader Jonathan Bartley explains more.

Nick Eardley
BBC political correspondent

Image source, Reuters

Labour has sometimes struggled to keep its message on Scottish independence clear and consistent.

The party in Scotland had said it believed Labour would have a mandate to reject calls for another referendum if it won power in Westminster.

But earlier this year John McDonnell made clear the party in London would not block a referendum if that’s what the Scottish Parliament wanted (and Holyrood does have a pro-independence majority).

Labour then said it wouldn’t allow a referendum in its formative years - assumed to mean before the next Scottish Parliament election in 2021.

Now - however - Mr Corbyn has muddied the waters, suggesting he might not allow one at all in the first term of a Labour government - in theory, five years.

That calls into question the relationship between Labour and the SNP - who have said an independence referendum should happen next year. Nicola Sturgeon has said she won’t even speak to Mr Corbyn unless he allows the Scottish parliament to make the decision.

It’s possible there will be more clarifications to come from Mr Corbyn.

Tom Barton
BBC reporter

Image source, EPA

Nigel Farage has accused the Conservatives of putting "party before country" and risking splitting the Brexit vote in 140 Labour-held constituencies that the Tories have never won.

Speaking after his event at a boxing club in East London, he told us he "made a big generous offer, and Boris Johnson's Conservatives have given us back nothing in return".

He denied being naive and allowing Boris Johnson to "play him", saying: "The chance was there this week - Boris Johnson could have won the election this week if he'd come to some sort of accommodation with me".

Mr Farage insisted the Brexit Party would still win seats on 12 December.

Simon Gompertz
BBC personal finance correspondent

The Communication Workers Union had got overwhelming backing for industrial action after balloting more than 100,000 postmen and women and sorting office workers.

But Royal Mail argued at the High Court that, contrary to industrial relations law, some staff didn’t vote in secret - that the union officials interfered by encouraging them to open their ballot papers at work and filling them in openly.

The union was on the verge of announcing strike dates which were widely expected to target postal voting in the election on 12 December and pre Christmas deliveries.

Now it’ll have to work out whether it needs to launch a new ballot of members or whether it can appeal today’s decision.

The leader of influential union Unite, Len McCluskey, has warned Labour against promoting any further freedom of movement for workers, as demanded by delegates at the party's September conference.

In an interview with the Guardian, external, the union boss - an ally of Jeremy Corbyn - said including the policy in Labour's election manifesto would not be a "sensible approach", especially when trying to win over working class voters.

“It’s wrong in my view to have any greater free movement of labour, unless you get stricter labour market regulation," he tells the paper.

Earlier, shadow health secretary Jon Ashworth said the party would "retain freedom of movement" for those needed to work in the NHS.

Image source, PA Media

The answer to which party is doing best online depends on which platform matters most, says Matt Walsh, a senior lecturer in journalism at Cardiff University who has crunched the numbers, external at The Conversation.

He says the most watched party political video on Twitter is a launch advert posted by Jeremy Corbyn - although Boris Johnson’s account is competitive despite having around half as many followers on the platform.

Views don't tell the whole story though, Mr Walsh goes on. Some of the most-watched videos, such as the Conservatives' controversial film of Sir Keir Starmer on Good Morning Britain, have been shared by people with opposing views as they argue over what it really means.

On Facebook, the Conservatives top the leaderboard with a video of a young person attacking Labour and the Liberal Democrats on Brexit from the BBC's Question Time.

All parties have increased their reach on social media since the campaign began, but Mr Walsh said only the Lib Dems' Jo Swinson has had a statistically significant boost - perhaps because she's a newer face to much of the public.

Mr Walsh says parties are increasingly active on Instagram and they have begun some limited use of Snapchat. But no one has so far begun using TikTok, the video-sharing that has seen huge growth among younger teenagers.