The most consequential political trials are rarely won by a single explosive revelation. They are won through accumulation.

That appears to be the strategy unfolding in the Senate impeachment trial of Vice President Sara Duterte.

Day after day, prosecutors have continued presenting documents, witnesses, and testimony intended to establish patterns rather than isolated incidents. Whether every allegation ultimately withstands legal scrutiny remains for the Senate to decide. But politically, impeachment is never judged solely inside the chamber. It is also judged in the court of public opinion. (YouTube)

Perhaps the most striking indication of shifting public sentiment comes from the latest OCTA survey on the 2028 presidential race. While Sara Duterte remains among the leading presidential contenders, former Naga City mayor Leni Robredo has narrowed the gap considerably. Nationally, Duterte still leads, but in Metro Manila the two are statistically tied at 34 percent each. (Inquirer.net)

Political campaigns are often battles over momentum.

The impeachment proceedings may not have fundamentally altered Duterte’s core political base, but they appear to have complicated the once-prevailing assumption that she would remain the overwhelming favorite for 2028. Her defense has downplayed survey fluctuations and insists the trial remains the proper venue for addressing the accusations rather than opinion polls. (ABS-CBN)

History offers useful comparisons, although not perfect parallels.

Former Vice President Jejomar Binay saw his political standing decline following prolonged Senate investigations before the 2016 elections. The investigations themselves did not produce an immediate legal conviction, but months of sustained public scrutiny reshaped perceptions among many voters.

Whether Sara Duterte experiences a similar trajectory remains uncertain.

Yet impeachment proceedings possess a political logic that extends beyond legal guilt or innocence. Every hearing provides another opportunity for allegations to be examined publicly. Every witness contributes another piece to a larger narrative. Even absent a dramatic “smoking gun,” cumulative exposure can influence how undecided citizens evaluate public officials.

Another notable indicator is public attitudes toward the process itself. Surveys have found broad support for allowing the impeachment trial to proceed, suggesting many Filipinos prefer the allegations be tested through constitutional mechanisms rather than dismissed outright. (Philippine News Agency)

This distinction matters.

Supporting an impeachment trial is not identical to supporting conviction. Citizens may simply believe that serious accusations deserve a full airing before judgment is rendered.

The Senate therefore faces two separate responsibilities.

First, to determine whether the constitutional standard for conviction has been met based solely on the evidence presented.

Second, to demonstrate that accountability remains possible regardless of political popularity.

No responsible observer can confidently predict how Filipinos would react if the Senate ultimately convicts or acquits Vice President Duterte. Public responses to major political events depend on many factors, including how the decision is explained, whether the process is viewed as fair, and how political leaders respond afterward.

The Senate’s verdict, whenever it comes, will likely shape the country’s political landscape heading into 2028. But the durability of that verdict—in the eyes of the public—will depend less on who wins and more on whether Filipinos believe justice was pursued through a process that was transparent, constitutional, and credible.