[7][8] The governing Frente de Todos suffered big losses, losing its majority in the Senate for the first time in almost 40 years, and seeing defeats in stronghold provinces such as Buenos Aires and La Pampa.

[11][12] Both executive and legislative offices were renewed in 2019 in Argentina; both elections were won by the Frente de Todos, a new coalition formed by a number of Peronist and Kirchnerist parties and alliances (chiefly the Justicialist Party and the Renewal Front)[13] to support the presidential ticket of Alberto Fernández and former President Cristina Fernández de Kirchner (now Vice President).

[14][15] The second minority and largest force in the opposition is the coalition formed to support former president Mauricio Macri: Juntos por el Cambio (formed by, among others, Republican Proposal, the Radical Civic Union and the Civic Coalition ARI), which won 56 seats in the Chamber of Deputies in 2019 and presently has 115 seats, following defections from its inter-bloc.

[15][16] As early December 2020, the impact of the COVID-19 pandemic in Argentina prompted discussions on whether the 2021 elections, as well as the Open, Simultaneous and Mandatory Primaries (PASO) should be delayed and rescheduled.

A majority of provincial governors (both from the governing Frente de Todos as well as from opposition parties), initially suggested scrapping the PASO primaries altogether.

[4] The Juntos por el Cambio-led opposition in Congress, however, opposed the measure and introduced a bill to forbid the national government from cancelling the primaries.

[5] The national executive, led by President Alberto Fernández, initially supported the measure,[17] but later reached an agreement with Juntos por el Cambio to reschedule both the primaries and the legislative election for a month later.

[26][27] The results were largely negative for the governing Frente de Todos,[28] which received around 30% of the popular vote nationwide and lost in traditionally Peronist-leaning provinces such as Buenos Aires, Chaco, La Pampa, Santa Cruz and Tierra del Fuego.

[29] With a nationwide aggregate of 42%, Juntos por el Cambio was the most voted alliance in 16 out of 23 provinces and in the City of Buenos Aires, while local parties won in Neuquén (MPN) and Río Negro (JSRN).

[7][8] The Justicialist Party suffered big losses as its coalition lost its majority in the Senate for the first time since the return of democracy in 1983, as well as being defeated in its historical stronghold province of Buenos Aires.

[35] Argentina's President Alberto Fernández called for dialogue with the opposition after Sunday's midterm parliamentary elections, with the results showing his governing coalition has lost control of Congress.