The politicians praised the late Ms Obaigbena for her contributions to her state Delta and the country Nigeria.
Mr Abubakar is seeking both politicians support to defeat the ruling All Progressives Congress (APC) at next year’s presidential election.
Congratulatory messages to Peoples Democratic Party’s presidential candidate Atiku Abubakar are pouring in from across the country.
The officers were sighted at the Moshood Abiola National Stadium venue of the event in their fatigues on Saturday evening.
The monarch aired his views in an interview while trying to debunk reports that he has endorsed former Lagos governor Bola Tinubu for the 2023 presidency.
Mr Saraki that he would concentrate more on the non-oil sector, which according to him, is key to boosting the economy and creating job opportunities.
Eminent citizens, highly respected leaders and operators of the Fourth Estate of the realm, my friends and colleagues, dear compatriots, let me start by thanking all of you for finding time to be with
Mr Saraki made the pledge, among other affirmations at a media parley in Abuja on Thursday.
“Together we can make this country better. My interest will be your interest. I want to appeal, don’t share your delegate votes, this is my own state. I beg you.”
The former vice president said the presidency needs a “young man, strong and healthy” like Bukola Saraki.