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Last October Seumas Milne, a Winchester- and Oxford-educated left-winger, was granted unpaid leave from his position at The Guardian to enter the world of political spin as executive director of strategy and communications in Jeremy Corbyn's Labour Party.

The appointment wasn't without controversy. Milne has been labelled a Stalinist by David Cameron and caused division at The Guardian for chairing an event with President Putin. Jeremy Corbyn has chosen a hard-left thinker as his right-hand man.

As the Labour Party hustings come to a close this week, Adam Fleming speaks to friends and colleagues to find out about the man who's at the heart of the Corbyn project.

Producer: Smita Patel.