SEN. JINGGOY ESTRADA AS SENATE PRESIDENT PRO TEMPORE: Opposition stalwart Sen. Jinggoy Ejercito Estrada takes oath as Senate President Pro Tempore before Senate President Manny Villar. Others in picture are Mrs. Precy Ejercito Estrada, Sen. Luisa Ejercito Estrada, Jude Ejercito Estrada and San Juan Mayor JV Ejercito Estrada.