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Buenos Aires Province Senate

Senate of Buenos Aires Province

Senado de la Provincia de Buenos Aires
Verónica Magario, UP
since 10 December 2019
1st Vice President
Luis Vivona, UP
since 10 December 2021
2nd Vice President
Alejandro Cellillo, UCR
since 10 December 2021
3rd Vice President
Ayelen Durán, UP
since 10 December 2021
Political groups
  •   Union for the Homeland (21)
  •   PRO (11)
  •   UCR–CF (8)
  •   La Libertad Avanza (4)
  •   Free Buenos Aires (1)
  •   People's Right (1)
Party-list proportional representation
Hare quota
Last election
22 October 2023
Meeting place
Legislative Palace of the Province of Buenos Aires
La Plata, Argentina

The Senate of Buenos Aires Province (Spanish: Senado de la provincia de Buenos Aires) is the upper house of the Legislature of Buenos Aires Province, the largest and most populous of Argentina's provinces. It comprises 43 members elected in eight multi-member constituencies known as Electoral Sections. The number of senators that correspond to each of the electoral sections is proportional to their population, as observed in the results of every nationwide census conducted in Argentina every 10 years. Seats may only be added to adjust the proportionality of each section, but never reduced.[1]

As in the National Chamber of Deputies and most other provincial legislatures, elections to the Senate are held every two years, so that half of its members are up in each election. The same system is employed in the provincial Chamber of Deputies.[2]

The Senate was established with the promulgation of the Constitution of the State of Buenos Aires, a short-lived secessionist state, in 1854. Originally located in the City of Buenos Aires, the provincial legislature was moved to La Plata following that city's establishment in 1882. The body meets in the Legislative Palace, designed by Hannover architects Gustav Heine and Georg Hagemann in 1883 and completed in 1888.[3]

List of presidents of the Senate

The Senate is chaired by the vice governor of the province, who is elected alongside the governor every four years. The Vice Governor may only cast tie-breaking votes (according to article 93 of the provincial constitution).[4] The following is a list of vice governors of Buenos Aires since the return of democracy in 1983.

President Party Term start Term end Governor
Elva Roulet UCR 10 December 1983 10 December 1987 Alejandro Armendáriz
Luis María Macaya PJ–FR 10 December 1987 10 December 1991 Antonio Cafiero
Rafael Romá PJ 10 December 1991 10 December 1999 Eduardo Duhalde
Felipe Solá PJ 10 December 1999 3 January 2002 Carlos Ruckauf
Alejandro Corvatta PJ 3 January 2002 10 December 2003 Felipe Solá
Graciela Giannettasio PJFPV 10 December 2003 10 December 2007
Alberto Balestrini PJFPV 10 December 2007 7 April 2010 Daniel Scioli
Gabriel Mariotto PJFPV 7 April 2010 10 December 2015
Daniel Salvador UCRC 10 December 2015 10 December 2019 María Eugenia Vidal
Verónica Magario PJUP 10 December 2019 incumbent Axel Kicillof


  1. ^ "Ley N° 5.109". Normas | Gobierno de la Provincia de Buenos Aires (in Spanish). Retrieved 27 December 2021.
  2. ^ "Buenos Aires Province Chamber of Deputies Official Site". Archived from the original on 2009-02-21. Retrieved 2011-10-04.
  3. ^ "Historias". Cámara de Diputados de la Provincia de Buenos Aires. Archived from the original on 2012-10-01. Retrieved 2012-09-22.
  4. ^ "Constitución de la Provincia de Buenos Aires". InfoLeg (in Spanish). 1994. Retrieved 27 December 2021.
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Buenos Aires Province Senate
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