2005 Argentine legislative election

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2005 Argentine legislative election

← 2003 23 October 2005 2007 →
127 of 257 seats in the Chamber of Deputies 24 of 72 seats in the Senate
Turnout	73.33% (Deputies) 76.41% (Senate)
Party Vote % Seats +/– Chamber of Deputies Front for Victory 39.46% 63 −5 Radical Civic Union 10.17% 14 −3 Federal Peronism 8.09% 12 +11 Support for an Egalitarian Republic 8.00% 9 −1 Republican Proposal Alliance 7.44% 10 +6 Socialist Party - Radical Civic Union 5.18% 7 0 Federalist Unity Party 2.29% 2 −1 New Front 2.02% 3 0 Front of Everyone (Corrientes) 1.63% 3 0 Salta Renewal Party 0.58% 1 0 Neuquén People's Movement 0.50% 2 0 Civic Front for Victory 0.36% 1 0 Senate Front for Victory 47.70% 16 +3 Federal Peronism 17.44% 5 +5 Radical Civic Union 8.13% 3 −3 This lists parties that won seats. See the complete results below.

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Argentina held national parliamentary elections on Sunday, 23 October 2005. For the purpose of these elections, each of the 23 provinces and the Autonomous City of Buenos Aires are considered electoral districts.

Each district elected a number of members of the Lower House (the Argentine Chamber of Deputies) roughly proportional to their population. Eight districts (Buenos Aires, Formosa, Jujuy, La Rioja, Misiones, San Juan, San Luis, and Santa Cruz) also elected members to the Upper House of Congress (the Argentine Senate); as usual, three senators were elected (two for the majority, one for the first minority).

In most provinces, the national elections were conducted in parallel with local ones, whereby a number of municipalities elected legislative officials (concejales) and in some cases also a mayor (or the equivalent executive post). Each provincial election followed local regulations.

A number of districts had held primary elections beforehand. In most cases, primary elections are optional and can be called for by the local political parties as needed; in Santa Fe, however, the primaries were universal and compulsory due to a recent law that repealed the much-criticized Ley de Lemas.