Supreme court Brexit case: whose prerogative is it anyway?

Day one of dispute over government’s powers to invoke article 50 takes in requisition of hotel in first world war and failure of Freddie Laker’s Skytrain
Theresa May’s plan to implement Brexit without the authorisation of a vote in parliament would be “a contemporary necessity” rather than a misuse of outdated ancient royal powers, the attorney general said at the start of the most keenly awaited constitutional law case in recent memory.
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