Did Emma, Kelvin or Karim win the great Glitterball trophy? We followed every moment of Strictly’s sparkling Saturday night spectacular

9.12pm GMT

And that’s the end of another Strictly – it’s been great fun, and as always made all the better by the incredible community in the comments. It’s been many years in the making with newcomers joining every year, and it feels like a very special corner of the internet. You are all amazing, and I hugely appreciate your wit and wisdom every week. A massive thank you to everyone.

That’s me done with liveblogging for 2019, but as usual we’ll open a blog on Christmas Day for the Strictly Christmas Special so you can put the comment box to good use. In the meantime you can find me on Twitter @heidistephens if you’d like to swing by and say hello (or goodbye).

9.11pm GMT

The series plays out to ‘We Are Family’ with Kelvin on Graziano’s shoulders, which is a workout he may regret later.

In the end, fears of a Corbyn government and disdain for Jo Swinson’s election campaign combined to defeat tactical voting. Over the past four weeks, the Observer has reported on constituency polls designed to assist voters wanting to oppose the Conservatives and stop Brexit. Last Sunday, we recommended candidates in 50 seats. Our results were not great. Non-Conservatives won only 13 of these seats; of these, nine were SNP gains in Scotland. In England, our preferred candidates triumphed in only four seats: Putney and Portsmouth South (Labour) and Richmond Park and St Albans (Liberal Democrat).

Why so few successes? It was not the fault of Deltapoll’s data. Almost everywhere, they identified the correct challenger. Most dramatically, they showed rightly that the Liberal Democrats were snapping at Dominic Raab’s heels, despite the foreign secretary’s apparently impregnable 23,000 majority.

British voters’ ruthless rejection of Jeremy Corbyn and his radical socialist project reads like a cautionary tale for leftwing political leaders and parties in the US and Europe. Will Labour’s crushing defeat dim their ardour, or will they double down on revolution?

The general election outcome will embolden Democratic party critics of Bernie Sanders, a 2020 US presidential hopeful whose outlook has often been likened to Corbyn’s. Both men are veteran hard-left campaigners with strong appeal among younger, post-crash voters.

Jeremy Corbyn on Sunday accepted his personal responsibility for Labour’s general election defeat as he gave his fullest explanation to date for the catastrophic losses that helped return Boris Johnson to Downing Street.

Writing in the Observer, the Labour leader, who has announced he will step down when a successor is elected in the spring, describes the results as “desperately disappointing”.

Governments including the US, Brazil, Australia and China accused of frustrating negotiations

Global climate talks look set to continue past midnight on Saturday, after a marathon final negotiating session that has been ongoing since Friday without clear resolutions on how to implement the Paris agreement, to the frustration of many countries and the dismay of campaigners.

Some bodies attending the summit – notably the EU – came forward with new long-term goals on cutting greenhouse gas emissions, but most were content to spend the two weeks of UN talks in Madrid arguing over narrow technical issues, including the details of carbon trading.