Just like in 2015, Mr Lawan again emerged as party favourite in 2019.
Initially , he was poised to contest against two of his colleagues; Ali Ndume and Danjuma Goje, but Mr Goje withdrew a week before the election day.
On Tuesday, 109 Senators-elect voted Lawan got 79 votes to defeat Ali Ndume, his closest rival.
A recipient of the Commander of the Order of the Niger (CON), Mr Lawan is coming with a vast pool of parliamentary knowledge spanning a stretch of 20 years, from House of Representatives in 1999 to Senate.
Meanwhile, Senator Omo-Agege, representing Delta central senatorial district, has emerged the deputy president of the ninth Senate.
Omo-Agege of the All Progressives Congress (APC) emerged victorious after defeating his challenger, the Peoples Democratic Party (PDP)’s Senator Ike Ekweremadu representing Enugu west senatorial district