Weregemere later held prominent positions in parastatals and sat on the central committee of the Mouvement Populaire de la Révolution from 1980 until 1985.
After studying with various Catholic institutions and taking courses in medicine, he entered the workforce, but frequently ran afoul of the colonial authorities for engaging in political activities.
The appointment was not well received by the public, and following attempts by the Adoula Government to arrest members of Parliament, Weregemere was removed from his office by a motion of censure in the Chamber in December.
In September 1980 he was inducted into the central committee of the state-sponsored party, the Mouvement Populaire de la Révolution, where he served until his expulsion in 1985, allegedly for opposing a government appointment.
Following a measure of political liberalisation in the early 1990s, he reestablished CEREA and took part in the Conference Nationale Souveraine to discuss the restoration of democracy.
In 1959 Weregemere became secretary-general of the party, and in that capacity he led CEREA's delegation to the Pan-African Movement for Eastern and Central Africa conference in Dar es Salaam.
Upon his arrival he was disappointed to learn that the other delegates had employed a Communist adviser and endorsed federalism (contrary to the official party plank supporting a unitary system).
[5] In April Werengemere accused the president and vice-president of CEREA of harbouring Communist sympathies and organised his own moderate branch of the party, CEREA-Werengemere.
[8] He accompanied Prime Minister Patrice Lumumba on his trip to the United Nations Headquarters in July as his appointed Commissioner of Public Relations.
He spent four weeks in the country, meeting with dozens of representatives of private organisations, foundations, banks, business firms,[9] as well as United States government officials and delegates of the International Monetary Fund.
[10][a] In October he was made a member of a commission assembled by Lumumba tasked with managing his relations with the United Nations Operation in the Congo.
[12] Fearing for his life in the capital, Léopoldville, amidst the declining political atmosphere, Weregemere fled to Bukavu on 9 January 1961.
He then went back to Stanleyville and became Minister of Information in the government of the rebellious Free Republic of the Congo, which tasked him with restoring order in Kivu in June.
[18] Seven days later Weregemere submitted a request to the Chamber Bureau for authorisation to indict Deputy Christophe Gbenye on charges of subversion for allegedly appealing to President Kwame Nkrumah of Ghana to send him troops to support his political activities.
That same day the Chamber called upon Weregemere to face a motion of censure for conducting arbitrary arrests of parliamentarians contrary to the constitution and thereby generating tension between Parliament and the government.
[13] Under President Joseph-Désiré Mobutu's rule, Weregemere was appointed Administrator of Parastatal Companies, and Government Representative on the board of directors of Joint Ventures.
[13] Weregemere joined the central committee of the state-sponsored party, the Mouvement Populaire de la Révolution, on 2 September 1980.