The Philippine Senate convened as an impeachment court on Monday, May 18, 2026 [1], to try Vice President Sara Duterte.

This trial represents a significant escalation in the country's political tensions, as it marks a rare attempt to remove a sitting vice president from office. The proceedings follow a formal move by the House of Representatives to hold the second-highest official accountable for alleged misconduct.

The court is presiding over articles of impeachment filed by the House of Representatives [3]. These articles accuse Duterte of corruption and making threats [3]. The Senate chamber in Manila served as the venue for the opening of the trial, where senators donned robes to signal the transition of the legislative body into a judicial one [4].

Reports on the exact start date of the proceedings have varied slightly among news outlets. While most sources confirm the court convened on May 18, 2026 [1], some reports indicated the date as May 19, 2026 [2].

The legal process will now focus on the evidence presented by the House prosecutors and the defense mounted by the vice president. The outcome of the trial could fundamentally shift the balance of power in the Philippine government, potentially removing Duterte from her position if the Senate finds her guilty of the charges.

Throughout the process, the Senate must adhere to strict procedural rules to ensure the trial's legitimacy. The focus remains on the specific allegations of corruption, and the nature of the threats cited in the impeachment articles [3].

“The Senate convened as an impeachment court on Monday, May 18, 2026”

The impeachment trial of Sara Duterte signifies a profound rupture in the Philippine political establishment. By transitioning the Senate into an impeachment court, the government is testing the strength of its constitutional checks and balances. A conviction would not only remove the vice president but would likely destabilize the current political coalition and set a precedent for the accountability of high-ranking officials regarding corruption and threats.