• The Philippine Senate has opened an impeachment trial for Vice President Sara Duterte amid severe political unrest.
• The trial could jeopardize Duterte's aspirations for a presidential run in 2028.
• Political dynamics are shifting significantly due to a recent leadership change in the Senate.
• Senator Ronald "Bato" dela Rosa's dramatic return from hiding has fueled the chaos surrounding the trial.
• Protests outside the Senate reflect deep divisions in public opinion and political trust.

The Philippine Senate convened on May 18 as an impeachment court to initiate proceedings against Vice President Sara Duterte, with the trial set against a backdrop of political turmoil and division. This high-stakes trial could determine whether she remains in office or is barred from holding public office, further complicating her 2028 presidential ambitions. The trial opened amidst chaotic events, including a recent shootout within the Senate, and leadership changes connected to Senator Ronald "Bato" dela Rosa, wanted by the International Criminal Court (ICC) for his role in the former president's drug war, according to Reuters and Channel News Asia.

This impeachment trial marks a critical challenge for Duterte, who is accused of misusing public funds and has faced increasing scrutiny following a fallout with President Ferdinand Marcos Jr., her political ally. As they were both part of the alliance that won the presidency in 2022, the trust between their factions has deteriorated since then. Analysts suggested that a conviction could profoundly impact Duterte's political future, including her bid for the presidency, as expressed by public administration scholar Ederson Tapia, who noted that a new Senate majority may impede prosecution. “Given that we now have a new majority... it would make prosecuting Vice President Sara in the impeachment court a little more difficult,” Tapia stated, according to South China Morning Post and Al Jazeera.

The proceedings began shortly after Senator Dela Rosa returned from a six-month self-imposed exile, casting a crucial vote to install Senator Alan Peter Cayetano as Senate president. Dela Rosa's reemergence intensified discussions about the influence of Duterte loyalists in the Senate, which is critical given that the Senate leader is expected to oversee the impeachment trial. Dela Rosa, who faces serious charges related to human rights violations, managed to evade arrest from authorities during the chaotic events surrounding his return, leading to public outcry against perceived government complicity in his evasion of justice, according to Reuters and Channel News Asia.

As the trial progresses, public sentiment towards the Duterte administration remains sharply divided. Protests have been reported outside the Senate, reflecting both support for Vice President Duterte and calls for her accountability, indicating deep fractures in the political landscape of the Philippines. Protester Mong Palatino criticized the Senate as a protective institution for politicians facing grave allegations, underscoring the challenge to public trust and the rule of law during these proceedings, as noted by South China Morning Post and Al Jazeera.