Former prime minister David Cameron with Conservative MP Nadhim Zahawi at the Conservative Party Conference in 2010. Mr Cameron said 'positive discrimination' under his leadership encouraged more women and people from ethnic minorities to join the Tory party. Getty Images
Former prime minister David Cameron with Conservative MP Nadhim Zahawi at the Conservative Party Conference in 2010. Mr Cameron said 'positive discrimination' under his leadership encouraged more womeShow more

David Cameron credits himself for diversity of candidates in Tory leadership race