Under the Senate impeachment court’s September 23, 2026 ruling, 14 votes are needed to convict Vice President Sara Duterte, because the court counts only the 20 senator-judges actually present out of the regular 24. The 1987 Constitution requires “the concurrence of two-thirds of all the Members of the Senate,” and the court ruled that phrase does not count senators who are detained, suspended, in hiding or on medical leave (1987 Constitution, Art. XI, Sec. 3(6); TPW, citing the Philippine Star).
Two-thirds of a full 24-member Senate would be 16. That gap is why the 14-vote rule has been challenged, and why the merits question is still open.
What does the 14-vote rule mean?
The Philippine Star reported that Sens. Jinggoy Estrada and Rodante Marcoleta are detained over plunder and graft cases, Sen. Ronald dela Rosa is the subject of an International Criminal Court arrest warrant and remains at large, and Sen. Loren Legarda has been abroad on medical leave since August. With 20 senator-judges present, two-thirds is 14 (TPW).
A lower bar makes conviction easier for the prosecution. For the Vice President’s defense and her supporters, it raises a fair question: should the denominator shrink because four elected senators cannot take part?
Did the Supreme Court approve the 14-vote rule?
No. The Supreme Court dismissed three petitions—filed by former executive secretary Vic Rodriguez, lawyer Ernesto Francisco Jr. and Berteni Causing—for “lack of standing and prematurity,” according to the Court’s press briefer as reported by the Philippine Star. That is a procedural dismissal. It does not rule on whether a variable vote denominator is what the Constitution allows, and the question can come back if a conviction vote is ever taken at 14 (TPW). See also our report from the day the court decided to proceed unless the SC issued a TRO.
How does impeachment work in the Philippines?
The House of Representatives has the exclusive power to initiate impeachment, and a vote of at least one-third of all House members is enough to impeach. The Senate then has the sole power to try and decide the case (Art. XI, Sec. 3). The House impeached Vice President Duterte in May 2026 on allegations of theft of confidential funds, unexplained wealth, bribery and grave threats, and the Senate trial began in July (TPW).
The Chief Justice presides only when the President is on trial. In this trial, the presiding officer is Sen. Francis Escudero, and the senators act as judges.
What charges are left in the Sara Duterte trial?
In early October, Manila Rep. Joel Chua confirmed that prosecutors would drop the bribery allegation (Article III), saying the move was to speed up the trial, not because the case was weak (TPW, citing the Daily Tribune). Critics of the prosecution see a pattern: a case that keeps changing shape. Read our opinion column, A Shrinking Case Is Not a Stronger Case.
What happens if she is convicted or acquitted?
Under the Constitution, judgment in impeachment cases extends only to removal from office and disqualification to hold any office, but the person convicted remains liable to prosecution and punishment under the law (Art. XI, Sec. 3(7)). An acquittal ends the impeachment case. Impeachable offenses are limited to “culpable violation of the Constitution, treason, bribery, graft and corruption, other high crimes, or betrayal of public trust” (Art. XI, Sec. 2).
Has anyone been convicted in a Philippine impeachment trial?
Yes, once. Chief Justice Renato Corona was convicted by the Senate in 2012. Former President Joseph Estrada was impeached by the House in 2000, but his Senate trial collapsed when senators blocked evidence, leading to public protests and his eventual resignation.
Frequently asked questions
How many votes are needed to convict Sara Duterte?
Fourteen, under the impeachment court’s September 23, 2026 ruling counting 20 present senator-judges. Two-thirds of a full 24-member Senate would be 16.
Why are only 20 senators counted?
The court excluded senators who are detained, at large, suspended or on medical leave. The Philippine Star named Estrada, Marcoleta, dela Rosa and Legarda.
Did the Supreme Court rule the 14-vote threshold constitutional?
No. It dismissed the petitions for lack of standing and prematurity, leaving the merits unanswered.
Who presides over the Vice President’s trial?
Sen. Francis Escudero, as presiding officer. The Chief Justice presides only in a trial of the President.
When will there be a verdict?
No verdict date has been set. Sens. Francis Pangilinan and Panfilo Lacson said the court has not set one, after a spokesperson projected December 16 (TPW, citing Philstar).
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