Campaigner Gina Miller speaks outside the Supreme Court, after Britain鈥檚 most senior judges ruled Theresa May cannot trigger the Brexit process without consulting parliament

Gina Miller outside the Supreme Court

Source: Victoria Jones / PA Wire / PA Images

Campaigner Gina Miller speaking outside the Supreme Court in London, on Tuesday.

Britain鈥檚 most senior judges ruled, in Miller鈥檚 favour, that prime minister Theresa May cannot trigger the formal process for the UK鈥檚 exit from the European Union without consulting parliament, reinforcing the judgement made by the High Court last November.

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