Prime minister’s questions descended into chaos today as the SNP leader was expelled from the Commons – prompting a mass walkout from his party colleagues.

Ian Blackford was ordered out by a flustered John Bercow, after he refused to sit down in a protest over a failure to debate what he called a Brexit “power grab” from Scotland.

The row held up questions from several minutes, before the SNP MPs left the chamber en masse – some shouting and pointing at the Speaker and Tory MPs.

The SNP was furious after a strict guillotine on debate on the EU Withdrawal Bill left just 15 minutes to discuss a series of devolution controversies on Tuesday evening. 

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