How Article 50 will divide the Labour party

The Tories love talking about Europe, so pundits had thought that Britain's departure from the European Union would split them up once again and send them into civil war. But one party has instead found itself painfully divided over the issue, Labour.

Jeremy Corbyn wants his party to stay united, urging them to respect the referendum by not voting against the bill to authorise Article 50. But he is struggling to unite his party's metropolitan anti-Brexit MPs, and those from outside London who know they have to get with the times.

This has already led to frontbench resignations, as MPs feel they can't obey their leader's three-line whip. Tulip Siddiq was the first, and more are set to follow.

Maastricht and the EU referendum split the Tories as they merrily took lumps out of each other. But it turns out nothing keeps them united better than the prospect of crushing a divided Labour Party.