The Philippine Senate formally opened the historic impeachment trial of Vice President Sara Duterte on Monday, launching a politically charged legal battle that could determine not only her future in public office but also reshape the country’s political landscape ahead of the 2028 presidential elections. Held under tight security and amid growing public protests, the trial places Duterte at the center of allegations ranging from unexplained wealth and the misuse of confidential funds to threats against President Ferdinand Marcos Jr. As the proceedings begin, the case has become the defining chapter in the bitter collapse of the once-powerful Marcos-Duterte alliance, setting the stage for one of the most significant constitutional and political confrontations in modern Philippine history.

MANILA, Philippines – The Philippine Senate officially convened as an impeachment court on Monday, marking the beginning of one of the most consequential political trials in the country’s modern democratic history as Vice President Sara Duterte faces charges that could permanently end her political career. The highly anticipated proceedings, expected to span approximately 92 days, opened under extraordinary security as the nation watched a legal and political confrontation that reflects the growing rift between two of the Philippines’ most influential political dynasties.

Thousands of police officers were deployed around the Senate complex to maintain order during the opening day of the impeachment proceedings. More than 6,000 law enforcement personnel, including anti-riot units, secured the surrounding area as hundreds of demonstrators gathered outside, demanding accountability from the vice president. Protesters carried banners and chanted calls for her conviction, underscoring the deeply polarized public sentiment surrounding the historic trial.

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Vice President Duterte did not personally attend the opening session, opting instead to be represented by her legal team before the impeachment court. The Senate formally commenced proceedings under an approved pretrial schedule that lays out nearly three months of hearings, presentation of evidence, witness testimonies, and legal arguments before senators ultimately decide her political fate.

At the center of the impeachment case are allegations involving unexplained wealth, the alleged misuse of confidential government funds, and controversial public statements in which Duterte was accused of threatening the lives of President Ferdinand Marcos Jr., First Lady Liza Araneta-Marcos, and a former House Speaker if harm were to come to her. Prosecutors argue that these actions constitute serious violations of public trust and the Constitution. Duterte has consistently denied all allegations, insisting that the charges are politically motivated and designed to eliminate her from future national elections.

Should the Senate vote to convict, the consequences would be severe. Under the Constitution, a conviction would remove Duterte from office and permanently bar her from holding any public position in the future. Such an outcome would effectively derail her publicly declared intention to seek the presidency in the 2028 national elections, when President Marcos is constitutionally required to step down after completing his single six-year term.

The impeachment proceedings also symbolize the dramatic collapse of what was once considered one of the strongest political alliances in recent Philippine history. Marcos and Duterte joined forces during the 2022 presidential elections, combining the electoral influence of the Marcos and Duterte political families in a landslide victory that reshaped Philippine politics. However, what began as a powerful alliance steadily deteriorated amid disagreements over governance, policy direction, and political influence, eventually evolving into an intense rivalry that now dominates the country’s political landscape.

Political tensions intensified further following the arrest of Duterte’s father, former President Rodrigo Duterte, who remains in detention in The Hague after being surrendered to the International Criminal Court. The former president faces allegations of crimes against humanity linked to his controversial anti-illegal drug campaign, which resulted in thousands of deaths during his administration. International human rights organizations and several Western governments have long criticized the deadly anti-drug operations, alleging widespread extrajudicial killings. Rodrigo Duterte has repeatedly denied authorizing unlawful killings while maintaining that his administration merely pursued an aggressive campaign against criminality.

Sara Duterte has openly blamed the Marcos administration for facilitating her father’s arrest and transfer to the ICC, accusing the government of abandoning national sovereignty and allowing foreign intervention in domestic affairs. The issue has further deepened political divisions, with Duterte supporters viewing the legal actions against the former president as politically driven, while critics argue that accountability for alleged human rights violations is long overdue.

Beyond domestic politics, the rivalry between the Marcos and Duterte camps has highlighted significant differences in foreign policy priorities. President Marcos has strengthened defense cooperation with the United States, expanding military partnerships and reinforcing the Philippines’ longstanding alliance amid increasing tensions with China in the disputed South China Sea. His administration has repeatedly condemned China’s increasingly assertive actions, including confrontations involving Philippine vessels and fishermen.

In contrast, the Duterte political camp has maintained a more conciliatory posture toward Beijing, reflecting policies established during Rodrigo Duterte’s presidency. His administration cultivated close diplomatic ties with Chinese President Xi Jinping and Russian President Vladimir Putin while frequently criticizing Washington. Vice President Duterte has likewise faced criticism from political opponents for allegedly failing to strongly condemn China’s actions in disputed waters, a position that has fueled debate over the country’s national security strategy.

The impeachment itself originated in the House of Representatives, where lawmakers overwhelmingly approved articles of impeachment against Duterte last month. The complaint accuses her of amassing unexplained wealth, improperly using confidential government funds, and making public threats against the country’s highest officials. Duterte has broadly denied wrongdoing but has largely refrained from offering detailed public responses ahead of the formal trial, arguing that her defense should be presented before the impeachment court rather than through media statements.

Her allies continue to insist that the proceedings are politically motivated. Supporters argue that the Marcos administration and its congressional allies are using the impeachment process to weaken the Duterte political faction and prevent Sara Duterte from mounting a formidable presidential campaign in 2028. Administration allies, meanwhile, maintain that the impeachment is a constitutional mechanism intended to ensure accountability for public officials accused of serious misconduct.

Under Philippine law, conviction requires the support of at least two-thirds of the Senate, meaning 16 of the chamber’s 24 members must vote in favor of removing the vice president from office. The political arithmetic has become increasingly complicated due to legal troubles involving several senators closely associated with the Duterte camp.

Senator Jinggoy Estrada, considered an ally of the Duterte family, was recently arrested and detained on a non-bailable plunder charge linked to an alleged flood-control project bribery scheme. Estrada has denied all accusations and maintains his innocence.

On the same day the impeachment trial began, another Duterte ally, Senator Rodante Marcoleta, was also arrested after authorities filed a non-bailable plunder case accusing him of receiving substantial campaign contributions that were allegedly omitted from his required statements of assets and liabilities. Marcoleta has strongly rejected the allegations, describing the charges as baseless.

Meanwhile, Senator Ronald dela Rosa remains absent after reportedly going into hiding following the issuance of an ICC arrest warrant identifying him as a co-perpetrator in the alleged crimes connected to Rodrigo Duterte’s anti-drug campaign. Dela Rosa previously served as the country’s national police chief and was among the principal architects of the controversial anti-narcotics operations during the Duterte administration.

As the impeachment trial moves forward, the Senate now carries the responsibility of deciding not only the political future of the sitting vice president but also a case that could redefine the balance of power in Philippine politics. Over the coming months, senators will hear evidence, evaluate constitutional arguments, and render a decision whose impact is expected to extend well beyond the walls of the Senate, influencing governance, the country’s political landscape, and the direction of the 2028 presidential race.

Sara Duterte Unveils 16-Lawyer Defense Team as Senate Impeachment Trial Officially Begins

Vice President Sara Duterte has assembled a formidable legal defense composed of 16 lawyers as her impeachment trial before the Senate officially gets underway, signaling the beginning of what is expected to be one of the most closely watched constitutional proceedings in recent Philippine history.

The defense team formally submitted its Entry of Appearance before the Senate Impeachment Court on July 6, 2026, officially authorizing the lawyers to represent the vice president throughout the trial. The filing marked the formal start of Duterte’s legal defense against multiple impeachment charges that could ultimately remove her from office and permanently bar her from holding any future public position if convicted.

Leading the legal team is veteran lawyer Atty. Sheila Sison, who serves as lead counsel under the prominent Fortun Narvasa & Salazar Law Office. She is joined by several of the firm’s experienced litigators, including Atty. Philip Sigfrid Fortun, Atty. Gregorio Narvasa II, Atty. Carlo Joaquin Narvasa, Atty. Roberto Batungbacal, Atty. Justin Nicol Gular, Atty. Lindon Miguel Bacquel, Atty. David Ronell Golla VII, Atty. Maria Selena Golda Fortun, Atty. Clarlaine Radoc, Atty. Francesca Marie Flores, and Atty. Miguel Carlos Fernandez.

Strengthening the legal panel are several lawyers who previously served in key positions within the Office of the Vice President and the Department of Education. These include Atty. Michael Wesley Poa, former spokesperson of both the Office of the Vice President and the Department of Education; Atty. Reynold Munsayac, who also previously served as an OVP spokesperson; along with Atty. Mark Vinluan and Atty. Ralph Bodota.

The legal team is expected to challenge the impeachment complaint filed against Duterte, arguing that the accusations lack legal and factual basis while asserting that the proceedings are politically motivated. Duterte has consistently denied any wrongdoing and maintains that the impeachment case is part of a broader effort to undermine her political future.

The impeachment complaint contains four Articles of Impeachment that accuse the vice president of committing serious offenses while serving both as head of the Office of the Vice President and as Secretary of the Department of Education.

Among the most significant allegations is graft and corruption, centered on the alleged misuse and questionable liquidation of approximately ₱612.5 million in confidential funds allocated to the Office of the Vice President and the Department of Education. Lawmakers claim that irregular disbursements, including allegedly falsified liquidation documents, constituted violations of public trust and accountability in the use of government resources.

The complaint also includes allegations of bribery, accusing Duterte of allegedly authorizing the distribution of cash-filled envelopes to senior Department of Education officials during her tenure as education secretary. The accusation alleges that the payments were intended to influence or reward government officials, although Duterte has denied the claims.

Another major allegation involves unexplained wealth, with impeachment complainants claiming that Duterte accumulated assets amounting to approximately ₱2 billion that were allegedly not properly reflected in her Statement of Assets, Liabilities, and Net Worth (SALN). The complaint argues that the alleged discrepancies raise serious questions regarding transparency and compliance with constitutional requirements for public officials.

Perhaps the most politically explosive accusation is culpable violation of the Constitution, arising from statements Duterte made during a live online broadcast in which she said she had arranged for an assassin to kill President Ferdinand Marcos Jr., First Lady Liza Araneta-Marcos, and the then-Speaker of the House if she herself were harmed. Prosecutors argue that the remarks constituted a grave threat against the country’s highest officials and amounted to a serious breach of constitutional duty. Duterte has maintained that her statements have been taken out of context and should not be interpreted as an actual threat.

The Senate, sitting as an impeachment court, will hear evidence and witness testimony from both the prosecution and the defense in proceedings expected to last several months. Under the Constitution, the vice president can only be convicted if at least two-thirds of the Senate vote in favor of impeachment.

As the trial unfolds, the 16-member defense panel faces the challenging task of dismantling the prosecution’s allegations while protecting Duterte’s political future. The outcome of the proceedings is expected to have far-reaching consequences not only for the vice president but also for the country’s political landscape heading into the 2028 presidential elections.