MANILA, Philippines — Vice President Sara Duterte leads former Vice President and current Naga City Mayor Leni Robredo in a hypothetical head-to-head vote-intention matchup for the 2028 presidential election, according to an OCTA Research Tugon ng Masa survey. The survey, conducted from July 4 to 11, asked 1,200 adult respondents: “If the May 2028 elections were
