Secondus made his political debut during the Second Republic in 1978. He later served as Rivers State Youth Leader of the National Party of Nigeria (NPN) and the  Rivers State Publicity Secretary of the National Republican Convention (NRC) between 1993 – 1998. 

In 2002, after the return of democracy,  he was elected the Chairman of the Peoples Democratic Party (PDP) in Rivers state – a position he held for two terms, until 2008.  While state party chair, he earned the title “Total Chairman”, and headed an influential group in the National Executive Committee known as G.84.

In 2007, Secondus was the South-South Coordinator for the PDP National Campaign Council that organised the campaigns for the party during the 2007 general elections. Following this, in 2008, he was promoted to the National Organizing Secretary of the party, a position he held until 2012.

Between 2013 and 2015, Secondus served in his electrical position as the Deputy National Chairman of the People’s Democratic Party. For a brief period of 10 months, he served as the Acting National Chairman of the party, following the resignation of Adamu Mu’azu in 2015. 

In 2017, Secondus was announced the winner of the election which made him the PDP National Working Committee Chairman. He worked in this capacity until 2021, when he was suspended by the party, due to his alleged inability to address internal issues threatening the party.