He is the founder and leader of the Give Me Back Elmo party which he set up to seek to change the law in family courts after his own experiences.

[2] He and the party received media coverage as Smith and two other members of the party waited with placards to greet the Prime Minister, David Cameron, at the polling station where he cast his vote on election day (7 May 2015),[3][4] and Smith appeared while dressed as the Sesame Street character Elmo at the vote count in numerous photos with the Prime Minister and behind him on the stage.

[7] Smith stood in the Chells ward at the 2016 Stevenage Borough Council election, receiving 23 votes and finishing in last place in a field of six candidates.

[9] After the resignation of Sadiq Khan MP, Smith stood in the 2016 Tooting by-election and received nine votes, finishing second-last of fourteen candidates.

[10] He received just three votes, finishing last out of thirteen candidates, in the general election in June 2017, standing in the Maidenhead constituency, where Prime Minister Theresa May was re-elected.

[12][13] He stood against the Prime Minister Boris Johnson in Uxbridge and South Ruislip in the 2019 General Election as an Independent, receiving eight votes and finishing eleventh of twelve candidates.

[14] He stood against the Labour Party leader Keir Starmer in Holborn and St. Pancras in the 2024 General Election, finishing last out of twelve candidates with 19 votes.

Starting in Stevenage at the launch of the campaign, Smith first confronted Harman in Asda and then again later in the day whilst wearing a T-shirt bearing the slogan "This is what a victim of feminism looks like".

"[30][31] In March 2015, after asking Labour leader Ed Miliband a question at a question-and-answer session in Rotherhithe, Smith along with other New Fathers 4 Justice protesters were involved in an altercation outside.