NATIONAL
Advocates Philippines
IBP Says 12 Senators Enough For Valid Senate Quorum
Photo credit: Integrated Bar of the Philippines
The Integrated Bar of the Philippines (IBP) has weighed in on the ongoing dispute over the legality of the Senate’s June 3 session, saying that a quorum was validly established even with only 12 senators present.
In an official statement released by the Office of the National Director for Communications on June 4, the IBP cited both the 1987 Constitution and the landmark Supreme Court case Avelino vs. Cuenco to support its position that the Senate session and the actions taken during it were lawful.
The debate emerged after a dramatic leadership shakeup in the Senate, where a group of senators declared a quorum, reorganized the chamber, and installed Sen. Sherwin Gatchalian as Acting Senate President. Supporters of former Senate President Alan Peter Cayetano have questioned the legality of the move, arguing that 12 senators were not enough to constitute a quorum.
In its statement, the IBP pointed to Article VI, Section 16(2) of the Constitution, which provides that “a majority of each House shall constitute a quorum to do business.”
The organization explained that the Supreme Court already interpreted a similarly worded constitutional provision in the 1949 case of Avelino vs. Cuenco. In that ruling, the Court held that a quorum is based on the number of senators who are actually available and within the Senate’s jurisdiction, rather than the total number of seats. The decision also recognized circumstances where certain members cannot realistically be compelled to attend Senate sessions.
According to the IBP, the doctrine applies to the current Senate situation because two senators were effectively unavailable during the June 3 session. One senator is detained in connection with a non-bailable offense, while another has been absent from public view since May 11 and could not be compelled to attend.
With those two senators excluded from the computation, the IBP said the number of senators considered available for quorum purposes was reduced from 24 to 22. A majority of 22 is 12, meaning the 12 senators present during the session were sufficient to conduct official business.
The legal group said the Supreme Court’s ruling promotes a practical interpretation of the Constitution, ensuring that the Senate can continue functioning instead of being paralyzed by the absence of members who are beyond its reach.
“In short, the Senate session of June 3, 2026 was lawful and valid following the Avelino doctrine because a quorum of 12 Senators was constituted. All acts, resolutions and decisions made by the Senate during its session of June 3, 2026 are presumed to be official acts of the Philippine Senate following the presumption of regularity in the discharge of official functions.”
The statement adds another legal voice to the growing debate over the Senate leadership dispute. Several constitutional law experts and legal groups have also argued that the June 3 session was valid under the Avelino vs. Cuenco precedent, which has become the central legal basis for the new Senate majority’s position.
The controversy remains politically significant because the Senate is expected to play a crucial role in the impeachment trial of Vice President Sara Duterte. The leadership battle and questions surrounding quorum have intensified scrutiny of the chamber as it prepares to handle one of the most consequential political proceedings in recent years.
In an official statement released by the Office of the National Director for Communications on June 4, the IBP cited both the 1987 Constitution and the landmark Supreme Court case Avelino vs. Cuenco to support its position that the Senate session and the actions taken during it were lawful.
The debate emerged after a dramatic leadership shakeup in the Senate, where a group of senators declared a quorum, reorganized the chamber, and installed Sen. Sherwin Gatchalian as Acting Senate President. Supporters of former Senate President Alan Peter Cayetano have questioned the legality of the move, arguing that 12 senators were not enough to constitute a quorum.
In its statement, the IBP pointed to Article VI, Section 16(2) of the Constitution, which provides that “a majority of each House shall constitute a quorum to do business.”
The organization explained that the Supreme Court already interpreted a similarly worded constitutional provision in the 1949 case of Avelino vs. Cuenco. In that ruling, the Court held that a quorum is based on the number of senators who are actually available and within the Senate’s jurisdiction, rather than the total number of seats. The decision also recognized circumstances where certain members cannot realistically be compelled to attend Senate sessions.
According to the IBP, the doctrine applies to the current Senate situation because two senators were effectively unavailable during the June 3 session. One senator is detained in connection with a non-bailable offense, while another has been absent from public view since May 11 and could not be compelled to attend.
With those two senators excluded from the computation, the IBP said the number of senators considered available for quorum purposes was reduced from 24 to 22. A majority of 22 is 12, meaning the 12 senators present during the session were sufficient to conduct official business.
The legal group said the Supreme Court’s ruling promotes a practical interpretation of the Constitution, ensuring that the Senate can continue functioning instead of being paralyzed by the absence of members who are beyond its reach.
“In short, the Senate session of June 3, 2026 was lawful and valid following the Avelino doctrine because a quorum of 12 Senators was constituted. All acts, resolutions and decisions made by the Senate during its session of June 3, 2026 are presumed to be official acts of the Philippine Senate following the presumption of regularity in the discharge of official functions.”
The statement adds another legal voice to the growing debate over the Senate leadership dispute. Several constitutional law experts and legal groups have also argued that the June 3 session was valid under the Avelino vs. Cuenco precedent, which has become the central legal basis for the new Senate majority’s position.
The controversy remains politically significant because the Senate is expected to play a crucial role in the impeachment trial of Vice President Sara Duterte. The leadership battle and questions surrounding quorum have intensified scrutiny of the chamber as it prepares to handle one of the most consequential political proceedings in recent years.
Jun 4, 2026
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