Senate Impeachment Court Urges Supreme Court to Dismiss Threshold Petition
The Office of the Solicitor General has formally urged the Supreme Court to throw out a legal challenge against the Senate impeachment voting threshold.

At a glance
- The Office of the Solicitor General requested that the high court throw out a legal challenge brought by lawmakers Robin Padilla and Bong Go.
- The petitioners sought to nullify the Senate rule on the two-thirds voting threshold for convicting Vice President Sara Duterte.
- The OSG argued the petition is premature and lacks merit, maintaining the Senate acted well within its constitutional powers.
The Senate impeachment court has asked the Supreme Court to reject a petition that challenges the rules governing Vice President Sara Duterte's trial.
In a filing submitted through the Office of the Solicitor General, the court argued that the legal challenge brought by lawmakers is both premature and baseless.
Arguments against the petition
In a 47-page comment, the Solicitor General requested that the high court throw out the petition for certiorari and prohibition. The filing also requested the denial of applications seeking a freeze order, a temporary restraining order, and a preliminary injunction writ.
Senators Robin Padilla, Bong Go, and the Partido Demokratiko Pilipino-Lakas ng Bayan filed the petition in October. They wanted the Supreme Court to stop the Senate and the House of Representatives from excluding any lawmaker from the total count of Senate members under the Constitution.
The constitutional debate on voting
The dispute centers on how to calculate the two-thirds majority required by the 1987 Constitution for a conviction in an impeachment trial. The Senate impeachment court previously decided to base the threshold on the number of senators who can legally and factually take part in the proceedings.
According to the Solicitor General, the Senate holds the authority to interpret this rule. The filing stated that the ruling merely clarified who should be counted when certain lawmakers cannot participate, preventing non-participating members from automatically counting as votes for acquittal.
A deliberative process
The OSG maintained that no grave abuse of discretion occurred during the proceedings. It pointed out that the impeachment court listened to both the prosecution and defense, invited outside experts, and debated the matter openly where objections were addressed. The filing frames the threshold decision as a matter of internal Senate procedure rather than a constitutional amendment. The high court's response will set a crucial precedent for how legislative bodies manage internal rules during high-stakes political trials.
What to watch: The Supreme Court will decide whether to grant, dismiss, or act upon the petition regarding the impeachment voting threshold.
Reporting from: GMA News. Spotted an error? Tell us.
- Supreme Court
- Senate
- Robin Padilla
- Bong Go
- Sara Duterte
- Office of the Solicitor General
- Philippines
- Politics

