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Manuela Castañeira

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Manuela Castañeira
Born (1984-11-22) 22 November 1984 (age 39)
Alma materUniversity of Buenos Aires
OccupationSociologist • politician
Political partyNew Movement for Socialism

Manuela Jimena Castañeira (born 22 November 1984) is an Argentine sociologist, feminist activist and politician. She is the leader of the Trotskyist Movimiento al Socialismo (Spanish: Nuevo MAS) and was the party's presidential candidate in the 2015, 2019, and 2023 general elections. In all occasions, she did not receive enough votes in the PASO primaries to make it past the threshold to participate in the general election.

Early life and education

Manuela Jimena Castañeira was born on 22 November 1984 in Paraná, Entre Ríos. She studied sociology at the University of Buenos Aires Faculty of Social Sciences.[1] She also works at a non-teaching position at the National University of General San Martín (UNSAM).[2]

Political career

Castañeira became politically active after moving to Buenos Aires from Entre Ríos to study sociology at UBA. As a member of the Movimiento al Socialismo, she became interested in feminism and actively participated in the campaign to legalize abortion in Argentina, becoming a leading voice in Las Rojas (English: "the Red [Female] Ones"), the feminist wing of the Nuevo MAS.[3]

Despite their shared Trotskyist orientation, the Nuevo MAS did not join the Workers' Party, the Socialist Workers' Party or Socialist Left in forming the Workers' Left Front in 2011. She first ran for President of Argentina in the 2015 primary elections; her ticket alongside Jorge Ayala received 0.46% of the votes, under the 1.5% required to cross the threshold of the primaries and participate in the general election.[4] In the 2017 midterm elections she ran for a seat in the Argentine Chamber of Deputies in Buenos Aires Province as part of the "Izquierda al Frente" list, formed by the Nuevo MAS alongside the Socialist Workers' Movement (MST), but the list received a little over 1% of the primary votes and did not participate in the general election.

Castañeira's brief 2019 presidential run was highlighted as she was the only female candidate in the race;[5] she once again received less than the necessary primary votes to participate in the general election. She had another unsuccessful run for Congress in 2021.

She ran once again for president in 2023.[6]

Electoral history


Electoral history of Manuela Castañeira
Election Office List Votes Result Ref.
Total % P.
2015 PASO President of Argentina New Movement for Socialism 103,742 0.46% 8th Not elected[a] [7]
2019 PASO President of Argentina New Movement for Socialism 179,461 0.70% 7th Not elected[a] [8]
2023 PASO President of Argentina New Movement for Socialism 85.628 0.36% 8th Not elected[a] [9]


Electoral history of Myriam Bregman
Election Office List # District Votes Result Ref.
Total % P.
2013 PASO National Deputy New Movement for Socialism 1 City of Buenos Aires 18,159 0.97% 10th[b] Not elected[a] [10]
2017 PASO National Deputy New Movement for Socialism 1 Buenos Aires Province 105,465 1.18% 6th[b] Not elected[a] [11]
2021 PASO National Deputy New Movement for Socialism 1 Buenos Aires Province 72,975 0.89% 10th[b] Not elected[a] [12]
  1. ^ a b c d e f Did not receive enough votes to cross the threshold to participate in the general election.
  2. ^ a b c Presented on an electoral list. The data shown represents the share of the vote the entire party/alliance received in that constituency.


  1. ^ "Información de Manuela Castañeira". Clarín (in Spanish). Retrieved 30 June 2023.
  2. ^ "Sumamos tres nuevas técnicas en Gestión Universitaria". (in Spanish). 3 April 2023. Retrieved 30 June 2023.
  3. ^ Luna, Mauricio (23 June 2019). "Manuela Castañeira, la única mujer precandidata a presidente: "Siento la responsabilidad de luchar por todas"". Infobae (in Spanish). Retrieved 30 June 2023.
  4. ^ "Elecciones Argentinas". (in Spanish). Archived from the original on 13 August 2015.
  5. ^ "Quién es Manuela Castañeira, la única mujer que compite como precandidata a presidenta". Perfil (in Spanish). 13 June 2019. Retrieved 30 June 2023.
  6. ^ Lacour, Pedro (14 June 2023). "El Nuevo MAS confirmó a Manuela Castañeira como su precandidata presidencial por fuera del Frente de Izquierda". La Nación (in Spanish). Retrieved 30 June 2023.
  7. ^ "Elecciones 2015". (in Spanish). Elecciones Argentinas. Archived from the original on 31 August 2015.
  8. ^ "Elecciones 2019" (PDF) (in Spanish). Poder Judicial de la Nación. 3 September 2019. Retrieved 7 July 2023.
  9. ^ "Elecciones 2023" (in Spanish). Dirección Nacional Electoral. 14 August 2023. Retrieved 18 August 2023.
  10. ^ "Elecciones 2013". (in Spanish). Dirección Nacional Electoral. 28 August 2017. Retrieved 4 February 2023.
  11. ^ "Elecciones 2017". (in Spanish). Dirección Nacional Electoral. Archived from the original on 1 September 2017.
  12. ^ "Elecciones 2021". (in Spanish). Dirección Nacional Electoral. Retrieved 4 February 2023.
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Manuela Castañeira
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