Zaire to have replaced "Zaire" gradually in English usage during the 18th century, and "Congo" is the preferred English name in 19th-century literature, although references to "Zahir" or "Zaire" as the name used by the natives (i.e. derived from Portuguese usage) remained common. In 1965, as in 1960, the division of power in Congo-Léopoldville between President and Parliament led to a stalemate and threatened the country's stability. Joseph-Désiré Mobutu again seized power. Unlike the first time, however, Mobutu assumed the presidency, rather than remaining behind the scenes. From 1965, Mobutu dominated the political life of the country, restructuring the state on
Constitution of Zaire president as President of Zaire itself with total power over government and judiciary (Articles 28 and 30). Mobutism was declared the state ideology (Article 46) and all Zaireans were automatically made members of the MPR (Article 8). Mobutu himself was exempted from the restrictions on power mentioned in the document and given the power to unilaterally modify the document at will. The state of Zaire's legal system as established by the constitution led Marcel Lihau, a jurist and former president of the Supreme Court of Justice who had fled the country, to remark that "Mobutu is the constitution in Zaire".