The opposition Peoples Democratic Party (PDP) has adopted Senator Bukola Saraki for the position of Senate President.
It also adopted Yakubu Dogara for the position of the Speaker of the House of Representatives.
Both men are of the ruling All Progressives Congress (APC).
The party, in a statement Tuesday morning, urged its senators and members-elect in the National Assembly to vote the two lawmakers.
PDP’s move is a challenge to the APC which had adopted Femi Gbajabiamila for the position of Speaker and Ahmed Lawan for the position of Senate President.
Meanwhile, just hours before the election at the National Assembly, President Muhammadu Buhari will meet with all Senators and House of Representatives members elected on the APC platform at the International Conference Centre Abuja.
Buhari returned to the country at about 1am from Germany where he attended the meeting of the G7 countries.
The spokesperson for the APC, Lai Mohammed, who announced the meeting, also urged all concerned to attend.
The APC has been enmeshed in crisis in the build up to the election of new Principal Officers for the National Assembly.
