G.R. No. 221538, September 20, 2016
Rizalito Y. David, Petitioner, vs. Senate Electoral Tribunal and Mary Grace Poe-Llamanzares, Respondents.

FACTS

This case originated from a quo warranto petition filed by Rizalito David before the Senate Electoral Tribunal (SET), challenging the qualification of Senator Mary Grace Poe-Llamanzares. The core issue was whether Poe, a foundling abandoned as an infant in Iloilo in 1968, is a natural-born Filipino citizen eligible for the Senate. The SET dismissed the petition, ruling in favor of Poe’s qualification. David elevated the matter to the Supreme Court via a petition for certiorari, alleging the SET committed grave abuse of discretion. The ponencia of Justice Leonen affirmed the SET’s decision. This digest encapsulates the dissenting opinion of Justice Perlas-Bernabe.
Justice Perlas-Bernabe frames the dissent on the principle that the SET’s act must be so capricious and arbitrary as to constitute an evasion of a positive legal duty to qualify as grave abuse of discretion. She argues the SET patently violated the Constitution and existing jurisprudence. The dissent centers on the application of the 1935 Constitution, which enshrined the principle of jus sanguinis (right of blood) for acquiring citizenship, requiring descent from a Filipino parent. It is admitted that Poe is a foundling with unknown parentage.

ISSUE

Did the Senate Electoral Tribunal commit grave abuse of discretion in ruling that Mary Grace Poe-Llamanzares, a foundling, is a natural-born Filipino citizen qualified for the office of Senator?

RULING

Yes. According to the dissent, the SET committed grave abuse of discretion. The legal logic is anchored on strict compliance with constitutional qualifications and the burden of proof in a quo warranto proceeding. Under the 1935 Constitution’s jus sanguinis principle, natural-born citizenship is predicated on blood relation to a Filipino parent. As a foundling, Poe has no known parentage from which to trace such a vital link. While the ponencia relied on circumstantial evidence—such as the location of her abandonment, her physical features, and statistical probabilities—to infer Filipino parentage, the dissent finds this evidence grossly insufficient.
The dissent emphasizes that upon Poe’s admission of her foundling status, the burden of evidence shifted to her to prove her citizenship by presenting competent evidence of blood relation to a Filipino citizen. The circumstantial evidence cited does not definitively prove Filipino parentage but only presents possibilities that are easily rebutted by contrary suppositions. Statistics on recorded births, for instance, do not account for unregistered births and still acknowledge a factual possibility that Poe belonged to the foreign-born class. Matters of qualification for public office demand the highest standard of proof, which was not met. Therefore, by ruling Poe qualified based on inadequate evidence, the SET acted in a manner equivalent to a refusal to perform its duty under the law, constituting grave abuse of discretion. The dissent concludes that without a prima facie link to a Filipino parent, Poe’s claim to natural-born citizenship remains unproven.