# President of the Senate of Puerto Rico

The president of the Senate of Puerto Rico (Spanish: Presidente del Senado) is the highest-ranking officer and the presiding officer of the Senate of Puerto Rico. The president has voting powers as it is elected amongst the own members of the Senate as established by Article III of the Constitution of Puerto Rico. The Constitution, however, does not establish its functions and since the Senate is the only body authorized by the Constitution to regulate its own internal affairs, the functions of the president vary from session to session—save being called "President" as the Constitution establishes. The president is typically elected during the Senate's inaugural session.
When absent, the president is substituted by the president pro tempore. Its counterpart in the House is the speaker.
The current president is Thomas Rivera Schatz, senator at-large from the New Progressive Party

## Background

The president traces its history back to more than 108 years ago when the Jones–Shafroth Act formally established the post on March 2, 1917. Said act was eventually superseded by another law, and the post was eventually established by the Constitution of Puerto Rico, specifically Article III, which establishes that, "The Senate shall elect a President [...] from among [its] members." The Constitution, however, does not establish what a "president" is nor what its function should be. Internal rules adopted by the Senate through a simple resolution establish its definition, functions, responsibilities, and legal scope.

## Functions

Typically the president is responsible for the observance and compliance of the Senate's internal rules. He also typically:
* presides all Senate meetings
* resolves and decides all parliamentary situations and rules of order brought in sessions,
* names all permanent and special commissions of the Senate,
* signs all bills, joint resolutions, concurrent resolutions, reorganization plans, and simple resolutions approved by the Senate and the Legislative Assembly,
* convenes special sessions of the Senate,
* maintains order and decorum in the Senate, a responsibility typically delegated to the Sergeant-at-Arms of the Senate,
* must vote in all matters presented in the Senate (can not abstain),
* represents the Senate in all forums,
* is responsible for all administrative matters of the Senate, a responsibility typically delegated to the Secretary of the Senate,
* appoints an internal auditor for the Senate,
* prepares a registry of all lobbyists that must be freely available to the public,
* is responsible of providing free access to the public to all works generated by the Senate, and
* offers training and continuing education opportunities to Senate members, advisors, and employees.

## Presidents

Union Party    Republican Party    New Progressive Party    Popular Democratic Party :
| # | President | Date it took office | Date it left office | Political party | President pro-tempore |
| 1 | Antonio R. Barceló (1868–1938) | 1917 | 1929 | Union | Eduardo Georgetti 1917–1921 Juan Hernández López 1921–1924 Luis Sánchez Morales 1926–1929 |
| 2 | Luis Sánchez Morales (1867–1934) | 1929 | 1933 | Republican | Celestino Iriarte Miró |
| 3 | Rafael Martínez Nadal (1877–1941) | 1933 | 1941 | Republican | Bolívar Pagán 1933–1940 Luis Padrón Rivera 1940–1941 |
| 4 | Luis Muñoz Marín (1898–1980) | 1941 | 1949 | PPD | Francisco M. Susoni Abreu 1941–1944 Samuel R. Quiñones 1945–1949 |
| 5 | Samuel R. Quiñones (1904–1976) | 1949 | 1969 | PPD | Luis Negrón López |
| 6 | Rafael Hernández Colón (1936–2019) | 1969 | 1973 | PPD | Juan J. Cancel Ríos |
| 7 | Juan J. Cancel Ríos (1925–1992) | 1973 | 1977 | PPD | Miguel Hernández Agosto |
| 8 | Luis A. Ferré Aguayo (1904–2003) | 1977 | 1981 | PNP | Manuel Ramos Barroso |
| 9 | Miguel Hernández Agosto (1927–2016) | 1981 | 1993 | PPD | Sergio Peña Clos 1981–1988 Miguel Deynes Soto 1989–1993 |
| 10 | Roberto Rexach Benítez (1929–2012) | 1993 | 1997 | PNP | Nicolás Nogueras Cartagena 1993–1995 Luisa Lebrón de Rivera 1995–1997 |
| 11 | Charles A. Rodríguez Colón (b. 1954) | 1997 | 2001 | PNP | Aníbal Marrero Pérez 1997–2000 Luz Z. Arce Ferrer 2000–2001 |
| 12 | Antonio Fas Alzamora (b. 1948) | 2001 | 2005 | PPD | Velda González de Modestti |
| 13 | Kenneth D. McClintock Hernández (b. 1957) | 2005 | 2009 | PNP | Orlando Parga Figueroa |
| 14 | Thomas Rivera Schatz (b. 1966) | 2009 | 2013 | PNP | Margarita Nolasco Santiago |
| 15 | Eduardo Bhatia (b. 1964) | 2013 | 2017 | PPD | José Luis Dalmau |
| 16 | Thomas Rivera Schatz (b. 1966) | 2017 | 2021 | PNP | Larry Seilhamer Rodríguez |
| 17 | José Luis Dalmau (b. 1966) | 2021 | 2025 | PPD | Marially González Huertas |
| 18 | Thomas Rivera Schatz (b. 1966) | 2025 | Present | PNP | Carmelo Ríos Santiago Marissa Jimenez Santoni |