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LONDON, ENGLAND - SEPTEMBER 16: Jeremy Corbyn departs his North London home ahead of the Prime Ministers questions on September 16, 2015 in London, England. This will be the labour leaders first Prime Minister's Questions in the House of Commons since being elected leader of labour party (Photo by Ben Pruchnie/Getty Images)
LONDON, ENGLAND - SEPTEMBER 16: Jeremy Corbyn departs his North London home ahead of the Prime Ministers questions on September 16, 2015 in London, England. This will be the labour leaders first Prime Minister's Questions in the House of Commons since being elected leader of labour party (Photo by Ben Pruchnie/Getty Images)

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Who came out on top in round one of Cameron vs. Corbyn?

New Labour Party Leader Jeremy Corbyn took part in his first Prime Minister Questions as opposition leader. CNN's Phil Black reports.

Who came out on top in round one of Cameron vs. Corbyn?

New Labour Party Leader Jeremy Corbyn took part in his first Prime Minister Questions as opposition leader. CNN's Phil Black reports.