The Impeachment Abacus: One Vote Short of Constitutional Murder

Azcuna Sounds the Alarm: 15 Votes = Senate Suicide Pact with the Constitution

By Louis ‘Barok‘ C. Biraogo — July 4, 2026

THE air inside the Senate is thick with the scent of ambition, fear, and the faint, metallic tang of legal gunpowder. The trial of Vice President (VP) Sara Duterte, set to begin in mere days, isn’t a search for truth. It’s a black-box theater production of the Marcos-Duterte war, a proxy battle for 2028 where the weapons aren’t just subpoenas and testimonies, but the very arithmetic of the Constitution. And right now, a retired jurist named Adolfo Azcuna has pointed a trembling finger at the tripwire that could blow the whole edifice to kingdom come: the number 16.

**“They Can’t Count to 16. Now Neither Can Democracy.”**

The Legal Paradox: 16 Votes or Constitutional Suicide

The plot is a legal paradox so exquisite it would make a law professor weep with joy. Article XI, Section 3(6) of the 1987 Constitution commands that no person shall be convicted in an impeachment trial “without the concurrence of two-thirds of all the Members of the Senate.” With a 24-seat chamber, that number is a fixed, unyielding 16. Not 15. Not a “two-thirds of those who bothered to show up.” Sixteen souls must vote to convict. Yet, the Senate has the “sole power to try and decide.” This is where the trapdoor opens. If a fractured, chaotic Senate convicts VP Duterte with a vote of 15-9, they will have achieved a political kill shot at the cost of a constitutional suicide. The conviction would be void ab initio—a legal stillbirth, a nullity dressed in a black robe. But if the Supreme Court (SC) then steps in to nullify this defective verdict, is it upholding the law, or committing an act of judicial usurpation by shredding the Senate’s “sole power”? Azcuna’s assertion is a constitutional prophecy: this thing is almost certainly destined for the Supreme Court.

Weaponized Political Interference: The Marcos Playbook

Let us first eviscerate the toxic political theater that has made this arithmetic crisis inevitable. This isn’t a trial; it’s a grotesque puppet show put on by the Marcos and Duterte clans, two warring dynasties using the Constitution as a cudgel. The pro-Marcos forces, hiding behind the prosecutor’s table, are deploying a familiar extra-legal toolkit to secure a conviction. We are witnessing a masterclass in weaponized political interference. The playbook includes the selective enforcement of laws to pressure senator-judges, the use of contrived congressional probes to generate a media-tabloid fog of guilt, and procedural ambushes like a compressed 92-day trial calendar that seems designed more for speed than for justice. In the shadows lurk the darker arts: whispers of bribery, blackmail, and witness intimidation to shore up a shaky prosecution narrative. The goal is to use the gavel as a guillotine, all while maintaining a pious facade of legal propriety.

Legal Nihilism and the War on the Arena: The Duterte Counter

But spare no scorn for the Duterte camp’s defensive strategy, a masterpiece of legal nihilism aimed at killing the process itself. Their toolkit is just as cynical. Their goal is not an acquittal based on a robust defense of the evidence; their goal is to run out the clock until 2028. Their tactics are a checklist of dilatory destruction: disrupt House proceedings to create chaos, file endless litigation in every available court, launch jurisdictional challenges that could take months to resolve, and fixate on attacking the admissibility and weight of every shred of paper. Their pièce de résistance is the manipulative reframing of the vote threshold denominator. By arguing that fugitive or detained senators shouldn’t count toward the 24-member base, they seek to manufacture a constitutional controversy out of political chaos, hoping to delegitimize any conviction before the first witness is even sworn in. They are not fighting the charges; they are fighting the arena.

The Denominator Grenade: Do Not Manufacture a 15-Vote Shortcut

This is why any attempt to move from 16 to 15 could generate litigation even before the merits of Duterte’s guilt are considered. The denominator dispute isn’t a complex legal question; it’s a grenade rolled into the center of the chamber. The Constitution is brutally clear: “all the Members of the Senate” means 24. A fugitive Senator is still a Senator. A detained Senator facing plunder charges is, tragically for him, still a Senator. No actor should be allowed to manipulate the denominator ad hoc to change the score needed to win. This is a warning—do not attempt a 15-vote shortcut because the Court may strike it down.

Constitutional Guardianship, Not Judicial Usurpation: The Court’s Surgical Strike

So how do we resolve the paradox? The most legally defensible framework, anchored in Philippine jurisprudence, is not to choose between the Senate and the Court, but to subordinate both to the Constitution. A conviction secured with 15 votes is not a “political decision” to be deferred to; it is a constitutional violation. This is precisely the definition of grave abuse of discretion—an act so capricious and whimsical it amounts to a excess of jurisdiction, the exact trigger for the Supreme Court’s power of judicial review under Article VIII, Section 1. The Court’s intervention in this scenario would not be to substitute its judgment on Duterte’s guilt or innocence. It would be a surgically precise strike to nullify a void act and to command the Senate, an erring co-equal branch, to comply with the explicit numerical mandate of the Constitution. This is not judicial supremacy; it is constitutional guardianship. The Court is not saying, “You are wrong about her guilt.” It is saying, “You cannot count.”

Quarantine the Rot: Insist on 16 Votes Before the Gavel Falls

The Senate can and must insist on 16 votes. It is the only way to quarantine this constitutional pandemic. The ultimate solution to this stress test, which reveals the profound institutional rot eating at our democracy, is a renewal of the rule of law. The Senate should pass a preemptive resolution, by a commanding majority, that formally defines the voting base as a fixed 24, removing the ambiguity that the Duterte camp is counting on. Let the chips fall where they may based on the evidence, not on a rigged scoreboard. To do otherwise is to place the nation on a conveyor belt into a full-blown constitutional crisis where the Vice Presidency’s legitimacy hangs in limbo, decided not by law, but by the raw arithmetic of a deeply broken political war. May the rule of law rise before the gavel falls on a poisoned verdict.

Key Citations

A. Legal & Official Sources

The 1987 Constitution of the Republic of the Philippines. Official Gazette of the Republic of the Philippines, 1987, http://www.officialgazette.gov.ph/constitutions/1987-constitution/.