LONDON, ENGLAND - MARCH 20:  Former Work and Pensions Secretary Iain Duncan Smith leaves BBC New Broadcasting House after appearing on the Andrew Marr show on March 20, 2016 in London, England. Mr. Smith resigned from the cabinet position after George Osbourne announced in his budget that cuts would be made to disability benefits. The post has since been filled by Stephen Crabb.  (Photo by Chris Ratcliffe/Getty Images)