Ms Harris criticised the president for endangering the lives of military officers and “destroying” America’s global reputation.
Among those present at the meeting were former governors Sullivan Chime, Ifeanyi Ugwuanyi, Chris Ngige, Okezie Ikpeazu, and Martin Elechi.
The decision followed a motion moved by the majority leader, Lawan Hussaini (Dala-APC), during plenary.
Mr Tinubu has been accused of acting as mourner-in-chief instead of the commander-in-chief of Nigeria amid insurgency.
“But at this point, even he should on his own step down without being told. It’s honourable to leave the stage when there’s still some applause, loud or not,” said Ms George.
“Heaven will not fall if the ADC or any other party fails to appear on the ballot as a result of its own non-compliance,” said APC.
A former House of Representatives member, Sam Onuigbo, says the 2027 Abia Central senatorial district election will not be determined by party sentiments.
According to the statement, Mr Usman-Zuru died on Monday evening in Cairo, Egypt, where he was receiving medical treatment.
Two U.S. military fighter jets—an A-10 Warthog attack aircraft and an Air Force F-15E—were shot down in separate attacks on Friday.
He said INEC has refused to receive correspondence from the party pending the court’s determination of the matter.
