Gina Miller: A powerful Black woman taking on the Gov

During the EU Referendum Brexiters vociferously claimed that the argument to leave the EU was as much about UK sovereignty as it was about immigration.

Well Gina Miller has put that Sovereignty question to the test, and in a first but crucial round she's resoundingly won. Her claim that Article 50, which would officially announce the leaving of the EU, could only be done by an Act of Parliament, - i.e. UK sovereignty , which would mean that MP's in Parliament would have a vote at some point to trigger Article 50 or not. The Prime Minister Theresa May is deeply opposed to this because she knows that Parliamentarians could say the deal to leave isn't in the UK's interest and therefore vote to remain.

The stakes couldn't be higher. And what this will further expose is a very divided UK, which is almost split down the middle with those who wanted to leave and those who seek to remain.

Whatever the outcome, the maverick investment manager Gina Miller is going to be centre stage for some time to come.

Simon Woolley