The Philippine Senate convened Tuesday, July 14, 2026, for the fifth day of Vice President Sara Duterte's impeachment trial [1].

The proceedings mark a critical escalation in the political conflict between the country's two highest officials. The outcome of the trial could result in the removal of the Vice President from office, fundamentally altering the nation's political landscape.

Presiding in Pasay City, the Senate is acting as the impeachment court to hear evidence regarding the Vice President's conduct [3]. The prosecution said that Duterte made grave threats against President Ferdinand Marcos Jr. and his family [3]. These allegations form the core of the legal effort to remove her from power.

On this fifth day of hearings, the court expected testimony from Zuleika Lopez [1]. Lopez, a close aide to Duterte, is viewed as a key eyewitness who may provide insight into the nature of the alleged threats [1].

The trial began on July 6, 2026 [2]. Since then, the proceedings have focused on establishing whether the Vice President's actions constitute a removable offense under Philippine law. The Senate's role as both the deliberative body and the court adds a layer of political complexity to the judicial process.

Legal teams for both the prosecution and the defense have spent the opening days of the trial presenting evidence and calling witnesses to establish the timeline of events. The testimony of inner-circle aides like Lopez is often the pivot point in such cases, as it can either corroborate the prosecution's claims of threats, or provide a defense of the Vice President's intentions [1].

The prosecution said that Duterte made grave threats against President Ferdinand Marcos Jr. and his family.

This trial represents a formal breakdown of the political alliance between the Duterte and Marcos families. Because the Philippine Senate serves as the impeachment court, the verdict will depend not only on the evidence presented by witnesses like Zuleika Lopez but also on the political alignment of the senators. A conviction would remove the Vice President from power, while an acquittal would solidify her position as a primary political opponent to the current administration.