Dlamini was previously involved in the African National Congress and its youth league. He was close to the league’s former Secretary-General Sindiso Magaqa.
He became a member of the EFF in the early days of the party. He was at the party’s launch at Uncle Tom’s Hall in Soweto in July 2013. He was elected to serve on the Central Command Team, the party’s highest decision-making structure.
He became a member of the National Assembly in April 2015 following the expulsion of multiple EFF MPs. He was re-elected for a second term in May 2019.
Before the EFF’s second leadership conference in December 2019, The Sunday Times reported that supporters of the EFF president, Julius Malema, had begun to lobby for Dlamini to succeed the incumbent secretary-general, Godrich Gardee. At the conference, Dlamini was elected unopposed to the position. he was re-elected for a second term in December 2024.