MANILA, Philippines — January 23, 2026 — Former Senator Antonio Trillanes IV announced that he will be filing an ethics complaint against Senator Ronald “Bato” dela Rosa in the coming months, citing the latter’s prolonged absence from Senate sessions.

In an interview with GMA Integrated News, Trillanes said the complaint will be lodged once sufficient grounds are established based on dela Rosa’s continued failure to attend plenary sessions. “We will file an ethics complaint against Senator Ronald ‘Bato’ dela Rosa over his non-attendance at the Senate within a few months,” Trillanes stated.

Dela Rosa, who has been absent from Senate proceedings for months, is reportedly facing a possible warrant of arrest from the International Criminal Court (ICC) in connection with alleged crimes against humanity during the Duterte administration’s war on drugs. His absence has drawn criticism from colleagues, with Senator Win Gatchalian earlier urging him to return to work.

Trillanes previously hinted at the possibility of filing such a case as early as December 2025, saying that continued absences could serve as grounds for expulsion under Senate rules. “Kapag natapos na itong first regular session ng Senado, puwede nang maging basis ‘yan for an ethics case na puwede siyang i-expel,” he said in an earlier interview.

The looming ethics complaint underscores growing tension within the Senate over accountability and attendance. While Senate leaders have so far refrained from immediate action, citing procedural requirements, Trillanes insisted that prolonged absence without a valid reason undermines the integrity of the institution.

The case is expected to spark debate over how the Senate enforces discipline among its members, especially in situations where external legal issues affect their ability to perform legislative duties.

Seat Without Service

A Senate seat carries a mandate, not a placeholder. Months of absence raise a basic question. How long can a lawmaker stay away before voters are effectively unrepresented? Critics argue attendance is not optional. Legislation, debate, and oversight demand presence, especially during national crises.

Defenders counter that rules allow flexibility in extraordinary circumstances. Illness, security risks, and legal pressure can justify time away. Ronald "Bato" dela Rosa has not been removed, and due process still applies. Absence alone is not guilt.

But representation is also a duty, not a defense. When does understanding become tolerance, and tolerance become abandonment of the public trust?