MPs are gearing up for Britain's first pre-Christmas election campaign in nearly a century
Boris Johnson says it is time for the country to "come together to get Brexit done"
Labour's Jeremy Corbyn says the snap poll gives the country a "once-in-a-generation" opportunity
Leaders clash in the longest ever Prime Minister's Questions
MPs backed the PM's 12 December election bill on Tuesday - peers are considering it today
Amber Rudd, David Lidington and Patrick McLoughlin join the ranks of MPs standing down ahead of the election
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"Where is the prime minister," asks Mr Blackford, noting that he has left the chamber.
"One wonders if he is away to dig a ditch," he says referring to the PM's promise that he would rather "die in a ditch" than extend Brexit negotiations.
BBC political correspondent Nick Eardley highlights a disconnect between the Labour leader's words and his MPs' faces.
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Jeremy Corbyn says Labour is ready to fight an election "whatever date the House decides the election will be".
He says he looks forward to getting out and campaigning against the government in an election, "whenever it comes".
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It is now the turn of the SNP's Westminster leader Ian Blackford.
He notes that the prime minister accused the SNP of trying to obstruct Brexit
"Well, Mr Speaker, guilty as charged," he says.
Image source, Getty imagesWith potential election dates being debated by MPs, close attention is being paid to the student vote - which is likely to influence the outcome of a number of parliamentary seats with a university population.
In the 2017 general election, some seats appeared to have been swung by students - so what might happen to the student vote if we have an election in December?
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Pete Wishart - the SNP MP for Perth and North Perthshire - appears to suggest his party will support the government in its quest for an election on 12 December.
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Jeremy Corbyn tells MPs that Labour "will be seeking to expand the franchise in the December election".
"That means supporting votes at 16, and it also means supporting the rights of EU citizens with settled status to vote in the elections of this country," he says.
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Jeremy Corbyn accuses the PM of "trying to stifle parliamentary democracy" by issuing an "almost unprecedented edict that only the government could amend its own legislation".
"It sums up, in a couple of words, the undemocratic and authoritarian instincts of the government and this prime minister."
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Image source, HoCResponding, Jeremy Corbyn says Labour backs a general election to end "this reckless and destructive Conservative government".
"It is time for real change," he says. He adds that his party will be launching the "most radical" election campaign.
BBC assistant political editor tweets...
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Boris Johnson says: "There is only one way now to move this country forward and that is to have this debate and get Brexit done."
He adds: "There is only one way to get Brexit done in the face of this unrelenting parliamentary obstruction.
"That is to refresh this Parliament and give the people a choice."
Labour MP Stephen Doughty says he has tabled a "simple and straightforward" amendment to the bill which would allow 16 and 17-year-olds to vote.
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Continuing, Boris Johnson says a new Parliament will be able to ratify his new Brexit deal and bring an end to "dither and delay" in Westminster.
He says Labour is now the "only one party running scared of an election".
He says he hopes Jeremy Corbyn will be able to stand up this afternoon and show he is "finally willing to submit" to an early poll.
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Independent MP Ken Clarke intervenes on the prime minister to say that Mr Johnson was "one of those who delayed Brexit in March by voting against the deal negotiated".
"He got a majority of 30 for his deal in principle last week," says Mr Clarke.
He suggests that if the House had used the past week to continue working on the bill "we would have been well on our way to agreeing a deal in time for mid-November".
Laura Kuenssberg
BBC political editor
This might be a messy afternoon, possibly amendments and tricks on all sides, but a senior Labour figure says: "The big picture is we are backing a December election."
BBC political correspondent Iain Watson tweets...
Meanwhile, Roland Rudd - the chair of Open Britain, one of the five organisations in the People's Vote campaign - faces demands for his immediate resignation after a motion of no confidence against him passed by a margin of 40 to three.
Staff at the People’s Vote campaign accused him of wrecking their fight against Boris Johnson’s Brexit plan at a crucial moment in the debate over our country’s future.
They also declared no confidence in Patrick Heneghan, who Mr Rudd unilaterally appointed as acting CEO of the campaign on Sunday night.
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Image source, HoC"The climate of uncertainty is corroding trust in politics," says the prime minister.
"It is holding people back from making vital everyday decisions.
"The performance of the UK economy is frankly miraculous given the stasis here in Parliament."
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Boris Johnson accuses the opposition of wanting to "procrastinate".
"They don't want to deliver Brexit on 31 October, 30 November or even 31 January," he says.
"They just want to spin it out forever until 12 of never."
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Boris Johnson now gets to his feet to begin the debate of the early election bill at the second reading.