Up to a third of Cameron's cabinet - including Home Secretary Theresa May, Foreign Secretary Philip Hammond, Business Secretary Sajid Javid and Work and Pensions Secretary Iain Duncan Smith - have expressed Eurosceptic sentiments. Professor Tim Bale asks: "Will they all campaign openly for 'leave' if Cameron is arguing for 'stay'?...Cameron's room for manoeuvre in cabinet really depends on him: if he thinks he can afford to lose a few people, then he can take a stronger line; if he thinks there's too many of them and that a mass walkout would damage the government's wider credibility, then his options are more limited."More ยปAlso covered by Business Insider, The Economic Times and Yahoo! News