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Members of Parliament have struggled to agree how Britain should leave the EU on 29 March. Deals proposed by Prime Minister Theresa May (and agreed with the EU) have twice failed to get through the House of Commons.

Now, MPs hope their 413 to 202 vote on Thursday will help them agree a deal. Any problem? Yes - the Brexit deadline is legally binding, and can't be extended without the agreement of all 27 other EU countries.

Even if the deadline is extended to help prompt the divided British Parliament (and divided governing Conservative Party) to agree a Brexit deal, there's no guarantee they will.