MANILA, Philippines — Sen. Robin Padilla said on Monday that Senate President Sherwin Gatchalian, not Sen. Francis Escudero, should preside over the impeachment trial of Vice President Sara Duterte. Members of the Senate majority said they would elect Escudero to preside over the impeachment trial. Asked whether he was in favor of Escudero presiding over the trial, Padilla disagreed, saying the Senate president should preside. “The Constitution …