 On 2 March 2017, Stewart said he was going to apply for US citizenship in order to oppose the Trump administration.However, in an interview by the Press Association at the British Film Institute Luminous Fundraising Gala on 3 October 2017, Stewart said that he hoped the US would pass stronger gun laws, but did not mention any intention of becoming an American citizen in furtherance of that hope.Stewart is a lifelong supporter of his local football club Huddersfield Town A.F.C.