In September 2011, Hamilton attended the annual conference of the UK Independence Party. The party's leader Nigel Farage pledged to support him in the election for the National Executive Committee. Hamilton was elected to the committee on 1 November 2011. He later become deputy chairman of the party. Hamilton was demoted from his role as campaign director in April 2014. In the May 2014 local elections, he stood as a UKIP candidate in the St Mary's Park ward of Wandsworth London Borough Council and finished 8th of the 9 candidates with 396 votes.