Having two women in the contest to decide the next prime minister will make it an honest campaign, former Conservative leader Iain Duncan Smith said.

Home Secretary Theresa May and Energy Minister Andrea Leadsom will battle to win the support of Tory members in the race for the Conservative leadership and the keys to Number 10.

More information: http://www.heraldscotland.com/politics/14605846.Iain_Duncan_Smith__All_female_leadership_duel__will_be_an_honest__straightforward_contest_/