Constitutional Law Santiago v. Guingona, Jr. G.R. No. 134577: November 18, 1998 FACTS: Senator Marcelo Fernan was elected Senate President for the 11th Congress, winning by a vote of 20:2 against Senator Francisco Tatad. Senator Blas Ople was elected president pro tempore and Senator Franklin Drilon, majority leader. Senator Tatad said that he was assuming the position of minority leader, since the 20 people who voted for Senator Fernan comprised the “majority,” while those who voted for him comprised the “minority.” However, Senator Juan Flavier manifested that the seven senators of the Lakas-NUCD-UMDP Party—also a minority considering the composition of the Senate—had selected Senator Teofisto Guigona as the minority leader. On July 30, 1998, the majority leader recognized Senator Guingona, Jr. as the minority leader. On July 31, 1998, Senators Santiago and Tatad filed for a petition for quo warranto, seeking the ouster of Senator Guingona, alleging that he had been unlawfully acting as the minority leader. Petitioners argue that the “majority” referred to in Section 16(1), Article VI of the 1987 Constitution is the group of Senators who voted for the winning Senate President and accepted committee chairmanships. They further assert that Senator Guingona cannot be the rightful minority leader because the members of Lakas-NUCD-UMDP Party, where Senator Guingona belongs, voted for the winning President, Senator Fernan, and because they accepted committee chairmanships. ISSUE: In recognizing respondent Guingona, Jr. as the Senate minority leader, did the Senate or its officials violate the Constitution or the laws? RULING: The Senate did not violate the Constitution or the laws when it recognized Senator Guingona as the Senate minority leader. While the Constitution requires that the President of the Senate must be elected by a number constituting more than one half of all the members, i.e., by a “majority,” it does not state that the members who will not vote for him shall constitute the “minority,” who could thereby elect the minority leader. No law or regulation states that the defeated candidate shall automatically become the minority leader. The Constitution only states that “[e]ach House shall choose such other officers as it may deem necessary”; it is silent on the manner of selecting them. And since even the Rules of the Senate neither prescribes the manner of procedure of choosing the other officers, the Legislature must be left on its own on how to fashion and promulgate its own operable norms and standards, owing to the separation of powers.