@rappler: Impeachment court declares Michael Poa as hostile witness WATCH: Presiding officer Chiz Escudero declares defense counsel Michael Poa as a hostile witness during the impeachment trial of Vice President Sara Duterte on September 2, 2026. Poa, Duterte’s chief of staff and spokesperson when she was Department of Education secretary, takes the witness stand as the impeachment court tackles allegations of alleged misuse of DepEd confidential funds when Duterte headed the agency.