The Senate leadership fight has moved to the Supreme Court, with Senator Alan Peter Cayetano and eight other senators asking the tribunal to strike down the June 3 session that placed Senator Sherwin Gatchalian in position to act as Senate leader.
Cayetano confirmed the move on June 16, saying, “We have brought this matter before the Supreme Court.” The filing brings the Senate’s internal power struggle into the country’s highest court, after weeks of competing claims over who can lawfully preside, issue orders, and control the chamber’s work.
The dispute exploded after the June 3 session, when 12 senators declared a quorum, moved to vacate Senate leadership posts, and elected Gatchalian as Senate President Pro Tempore. That placed Gatchalian next in line to exercise the powers of the Senate President.
Malacañang recognized the new arrangement. The Marcos administration said, “What happened in the Senate…was based on the law and the rule of law.”
Cayetano rejected the move. He called it an “illegal coup” and insisted that he remains the “legitimate, legal, moral Senate President.” His side argues that the Senate has 24 members, which means 13 votes are needed to elect or remove Senate officers.
The fight now turns on a basic but explosive question. Can 12 senators act as a valid quorum when two senators are effectively unavailable, or must the Senate count the full 24-member chamber every time leadership is at stake?
The petition also exposed a major political absence. ABS-CBN News reported, based on the prayer of the petition, that Senators Joel Villanueva and Mark Villar were not listed among the petitioners. Their absence matters because the official Senate Journal shows both senators voted for Cayetano on May 11, when the chamber recorded 13 votes for Cayetano, 9 for then-Senate President Vicente Sotto III, and 2 abstentions.
The Supreme Court had already dismissed an earlier petition filed by teacher John Barry Tayam, who asked the tribunal to validate the June 3 session. The Court dismissed it on June 10 for lack of legal standing, saying Tayam failed to show that he suffered, or was at risk of suffering, any direct injury from the actions he challenged.
That ruling did not settle who legally controls the Senate. Cayetano’s petition now puts the unresolved fight back before the high court. The outcome could decide who can preside over sessions, control Senate business, recognize committees, and speak for a chamber caught between two rival centers of power.
