President of the Senate of the Philippines

Election

The Senate president is elected by a majority vote of the members of the Senate from among themselves. Since there are 24 senators, 13 votes are needed to win the Senate presidency, including any vacant seats or senators not attending the session. Although Senate presidents are elected at the start of each Congress, there had been numerous instances of Senate leadership elections in which a sitting Senate president has been unseated in the middle of a session. Term-sharing agreements among senators who are both eyeing the position of the Senate president also played a role in changing the leadership of the Senate, but in a smooth manner, through the peaceful transition of power. Three known instances were in 1999, 2006, and 2018.

Newly elected Senate presidents are traditionally sworn in by the youngest senator, known as the "Benjamin" of the chamber, usually one belonging to the majority bloc, as in the cases of Bam Aquino administering the oath of office to Franklin Drilon in 2013, Manny Pacquiao to Koko Pimentel in 2016, Mark Villar to Francis Escudero in 2024, and Camille Villar to Alan Peter Cayetano in 2026.

Unlike the symbolic presiding officers of upper houses in some other governments, the Senate president of the Philippines has considerable power to influence the legislative agenda, and has a normal vote rather than acting only as a tie-breaker, though the tradition that the presiding officer is the last to vote has been maintained. A tied vote in the Senate therefore means that the motion is lost; the Senate president, having already voted in the normal way, cannot also cast a tie-breaking vote.

History

20th century

The position was established upon the inauguration of the Senate of the Philippines in 1916, replacing the Philippine Commission as the upper house of the Philippine Legislature. The first Senate president, Manuel L. Quezon, was elected on October 16, 1916 by unanimous acclamation. He served until 1935 when he was sworn in as the first president of the Commonwealth of the Philippines.

The next officeholder was Manuel Roxas, who served from after the bicameral Congress was restored in 1945 until his election as president the following year. Control of the Senate actively shifted between Nacionalistas and Liberals from then until 1972 under a two-party system, resulting in various presiding officers from both parties in a single Congress.

The first known ouster of a president of the Senate of the Philippines occurred in 1949, when Liberal Party senators supporting president Elpidio Quirino’s bid for reelection joined forces with senators from the Nacionalista Party to unseat José Avelino, a fellow Liberal, as Senate president. The move stemmed from the rivalry between Quirino and Avelino over who would become the party’s standard-bearer in the upcoming presidential election. Quirino and Avelino ultimately ran for the presidency under separate Liberal Party factions, with Quirino defeating Avelino by receiving more than 50% of the votes. Mariano Jesús Cuenco was elected to replace Avelino and retained the position despite Avelino’s subsequent attempt to reclaim the Senate presidency during the Second Congress.

This Congress also saw the greatest number of changes in the Senate presidency. Quintín Paredes succeeded Cuenco in March 5, 1952 after a two-month deadlock in electing a new Senate president. Paredes resigned on April 17, 1952 and was replaced by Nacionalista senator Camilo Osías. Osías was later unseated by Eulogio Rodriguez on April 30, 1952 who served as Senate president for a year before Osías regained the position on April 17, 1953, after two Nacionalistas joined 10 Liberals to elect him to the post. On April 30, 1953, senator Jose Zulueta was elected Senate president, serving until his resignation and Rodriguez's subsequent reelection on May 20 of the same year. Rodriguez went on to serve as Senate president for ten consecutive years.

His successor, Ferdinand Marcos, was the only pre-martial law Senate president who switched parties in the middle of his tenure, when he left the Liberal Party after failing to gain its nomination as their presidential candidate for the 1965 elections and ran under the Nacionalista ticket. Marcos was elected president of the Senate on April 5, 1963, during a session in which Senator Roseller T. Lim delivered the longest filibuster in Philippine Senate history in an unsuccessful attempt to block Marcos's election.

21st century

Ople resigned the Senate presidency on July 12, 2000, honoring a term-sharing deal with Franklin Drilon, who succeeded him, with the former assuming the post of president pro tempore. Drilon was then replaced by Aquilino Pimentel Jr. on November 14, 2000, after 13 senators voted Drilon out following his decision to break away from the Lapian ng Masang Pilipino, the ruling coalition led by president Joseph Estrada, whom he called on to resign, to join the opposition supporting then–vice president Gloria Macapagal Arroyo in light of Estrada being impeached by the House of Representatives. Pimentel himself resigned at the height of the controversial trial of Estrada when 11 out of the 21 senators present voted not to open the second envelope containing crucial evidence that could prove acts of corruption committed by the president.

The Senate had its first president from the Nacionalista Party since 1972, with Manny Villar assuming the position on July 24, 2006 after agreeing to a term-sharing arrangement with Drilon two years earlier. Juan Ponce Enrile was unanimously elected to replace Villar on November 17, 2008, serving until his resignation in 2013 following criticisms of mishandling Senate funds, particularly the disparity in the distribution of his so-called "cash gifts," with 18 senators receiving ₱1.6 million each and six receiving only ₱250,000 each.

Franklin Drilon served a third term as chief of the Senate during the 16th Congress. Koko Pimentel, a member of the ruling party PDP–Laban, was elected in 2016 and remained Senate president until May 21, 2018, when he resigned in favor of, and nominated, Tito Sotto as his successor. Sotto, who was term-limited, was reelected in 2019 and led the Senate throughout the COVID-19 pandemic until 2022.

Juan Miguel Zubiri was elected on July 25, 2022, at the start of the 19th Congress. He resigned the Senate presidency in May 2024 following criticisms from both supporters of president Bongbong Marcos and former president Rodrigo Duterte over investigations conducted by the Senate Committee on Public Order and Dangerous Drugs linking alleged leaked documents of the Philippine Drug Enforcement Agency to Marcos for illegal drug use, and due to his opposition to moves calling for charter change through people's initiative.

On May 20, 2024, Francis Escudero was elected Senate president, with 15 senators voting in favor, following a resolution signed by 13 senators circulating to oust Zubiri. Escudero defended his seat at the opening of the 20th Congress against Tito Sotto, winning with 19 votes to remain president of the Senate. However, on September 8, 2025, during a plenary session of the Senate, Sotto replaced Escudero as Senate president, on his second term as such, as the sole nominee for the position.

Powers and duties

According to the Rule III, Section 3 of the Rules of the Senate, the Senate president has the following powers and duties:

To preside over the sessions of the Senate on the days and at the hours designated by it; to call the Senate to order and, if there is a quorum, to order the reading of the Journal of the preceding session and, after the Senate shall have acted upon it, to dispose of the matters appearing in the Order of Business in accordance with the Rules;

To decide all points of order;

To sign all measures, memorials, joint and concurrent resolutions; issue warrants, orders of arrest, subpoena and subpoena duces tecum;

To see to it that all resolutions of the Senate are complied with;

To have general control over the session hall, the antechambers, corridors and offices of the Senate;

To maintain order in the session hall, the antechambers, corridors and in the offices of the Senate, and whenever there is disorder, to take appropriate measures to quell it;

To designate an acting sergeant-at-arms, if the sergeant-at-arms resigns, is replaced or becomes incapacitated;

To appoint the subordinate personnel of the Senate in conformity with the provisions of the General Appropriations Act;

To dismiss any employee for cause, which dismissal in the case of permanent and classified employees shall be in conformity with the Civil Service Law; and

To diminish or increase the number of authorized personnel by consolidating or separating positions or items whenever the General Appropriations Act so authorizes and the total amount of salaries or allocations does not exceed the amount earmarked therein.

Residence

The Senate president does not have an official residence in Metro Manila where the Senate is holding its sessions but it maintains a residence (cottage) in Romulo Drive, Baguio City.

Related officials

Acting Senate president

During the absence of the Senate president, the rules of the chamber provide that the president pro tempore presides over Senate sessions as part of discharging his duties. However, on five occasions in which the Senate president was absent for an extended period (such as during official travel abroad) or had resigned, the Senate designated acting presiding officers to conduct its legislative business.

Since 1930, six senators, including five who were serving as the incumbent president pro tempore, have acted as president of the Senate:

Sergio Osmeña, who filled in for Manuel Quezon during his illness in 1930;

José Clarín who served from 1932 to 1933 during Quezon's brief leave and trip to the United States over the Hare–Hawes–Cutting Act;

Fernando Lopez during a trip abroad by Eulogio Rodriguez;

Blas Ople in 1999 after the resignation of Marcelo Fernan;

Jinggoy Estrada in 2013 after the resignation of Juan Ponce Enrile; and

Sherwin Gatchalian in 2026 after Alan Peter Cayetano was ousted from his position as Senate President.

Presiding Officer of the Senate Impeachment Court

According to Article XI, Section 3, Paragraph 6 of the 1987 Constitution, the Senate has the sole power to try and decide all cases of impeachment. It provides that when the president of the Philippines, after being impeached by the House of Representatives, is on trial and the articles of impeachment have been transmitted to the Senate, the chief justice of the Supreme Court shall preside over the Senate convened as an impeachment court. If an impeachable officer other than the president is on trial, the president of the Senate serves as the presiding officer and casts the last vote on the judgment in accordance with the Senate Rules of Procedure in Impeachment Trials.

Chief justice Hilario Davide Jr. presided over the trial of president Joseph Estrada from December 7, 2000, until January 16, 2001, when several senators voted not to open an envelope containing a letter purportedly proving Estrada's guilt on the charges against him. During the trial of chief justice Renato Corona in 2012, Juan Ponce Enrile served as the presiding officer of the impeachment court, becoming the first president of the Senate to serve in such capacity.

After lengthy debates on the constitutionality of the articles of impeachment filed by the House of Representatives against vice president Sara Duterte, Senate president Francis Escudero was sworn in as presiding officer of the Senate impeachment court on June 9, 2025. However, this occurred prior to a formal trial, as a majority of senators in the 19th Congress voted the following day to remand the articles to the House, effectively halting the proceedings. The Supreme Court later unanimously nullified the complaint against Duterte for violating the “one-year bar rule” in the Constitution regarding the filing of cases against impeachable officers. The Senate subsequently adopted a resolution clarifying that the case was not being closed but merely set aside pending the Court’s resolution of the motion for reconsideration filed by the House. A trial in the Senate would have only proceeded if the Court reversed its decision, directed the Senate to conduct one, and the chamber voted to retrieve the case from the archives and act upon it.

Alan Peter Cayetano, who was elected Senate president on May 11, 2026, was sworn in as the presiding officer of the Senate impeachment court on May 18, when it convened for the trial of vice president Duterte following her second impeachment.