Abaribe, the second respondent in the petition filed by the All Progressives Grand Alliance (APGA) and its candidate, Mr Chris Nkwonta, closed his defence after calling four witnesses.
Nkwonta had approached the court to nullify the declaration of the Senate Minority Leader as the winner of the Feb. 23 poll for Abia South Senatorial District.
Nkwonta, who claimed to have won the majority of the lawful votes cast, is urging the tribunal to declare him winner.
Nkwonta closed his case after calling 33 witnesses, while the Independent National Electoral Commission (INEC) closed its defence as the first respondent, after calling one witness.
In an application to close his defence, Mr Chukwuma-Machukwu Umeh (SAN), counsel for Abaribe, told the tribunal that they were satisfied with the evidence of their witnesses.
The Chairman of the tribunal, Justice Adeyinka Adebirigbe, later adjourned sitting to Aug. 22 for the third respondent (PDP) to open its defence. (NAN)No tags for this post.