Analysis of information sources in references of the Wikipedia article "Frente Islâmica Nacional" in Portuguese language version.
Since the Government of Sudan—essentially the National Congress Party (formerly the National Islamic Front) ...
According to the Political Handbook of the World 2011, the NIF was renamed as the National Congress (NC) in 1996 (2011, 1356). Other sources report that in November 1998, the NIF renamed itself the National Congress (NC).
In late 1999/early 2000 the NIF went through a power struggle after Turabi attempted to take away Bashir's power (i.e. ability to name regional governors). In December 1999, Bashir took `the Ramadan decisions`, stripping Turabi of his posts, dissolving the parliament, suspending the constitution and declaring a state of national emergency. Eventually, in May 2000, Turabi was deposed from his position as "Speaker". As a result, Turabi then created the Popular National Congress Party later that summer.