 He had previously worked for the New Schools Network charity that advises free schools, as a volunteer from June 2009 and then as a paid freelancer from July to December 2010.Cummings became campaign director of Vote Leave upon the creation of the organisation in October 2015.As the leading strategist of the campaign he was credited with creating the Vote Leave slogan, "Take back control" and the claim that Brexit would allow an extra £350m a week to be spent on the NHS.