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Legislative Elections in Argentina 2025: Milei Aims to Gain Seats in Congress and Shape the Course of His Administration
Buenos Aires, October 26, 2025 – From 8 a.m. this morning, millions of Argentinians began voting across the country in the 2025 Legislative Elections, a pivotal day that will determine the renewal of 24 Senate seats and 127 in the Chamber of Deputies, potentially reshaping the balance of power in the National Congress.
These elections are historic, not only due to their political significance but also because for the first time the Paper Ballot System (BUP) is being used nationwide, a method approved to reduce public spending and enhance electoral transparency.
A nation at the polls
Polling stations are open from 8 a.m. to 6 p.m., with preliminary results expected later in the evening.
President Javier Milei, leader of La Libertad Avanza (LLA), faces a true “political battle” that will define the second half of his term.
The government seeks to secure one-third of Congress seats to block opposition initiatives and sustain its structural reform agenda. The outcome will determine the level of governability Milei will have heading into 2026 and 2027.
“We arrive at the elections standing tall,” the President said in Rosario, closing a campaign in which LLA appeared defensive amid an economic slowdown, cabinet resignations, and internal tensions.
Alliances and new political fronts
LLA has formed a strategic alliance with the PRO party, led by Mauricio Macri, in several provinces, including Buenos Aires and the Autonomous City of Buenos Aires (CABA).
Meanwhile, the kirchnerist faction competes under the new front Fuerza Patria, with Cristina Fernández de Kirchner as its main figure and Axel Kicillof emerging after his provincial victory on September 7, which reshaped the internal peronist landscape.
Fuerza Patria seeks to regain political strength and position itself as a serious contender for the 2027 presidential elections, especially in key districts like Buenos Aires and Santa Fe.
Provincias Unidas, a bloc of governors from Córdoba, Santa Fe, Corrientes, Jujuy, and Chubut, makes its national debut aiming to become a third federal force, positioning itself as a moderate alternative between libertarians and kirchnerists.
What’s at stake
These elections will define not only the composition of Congress but also the political direction of the country over the next two years.
For the government, achieving one-third of the seats means maintaining veto power and legislative stability.
For the opposition, the challenge is to limit the ruling party’s maneuvering space and rebuild a political project toward 2027.
Milei may leverage the results to “relaunch his administration”, as he previously indicated, potentially redesigning his cabinet and forging new political agreements in Congress.
Voting obligations and penalties
The National Electoral Code establishes penalties for those who fail to vote.
Citizens who do not attend without valid justification face fines ranging from $50 to $500.
Those who neither pay nor submit justification within 60 days after the election will be entered into the Register of Voting Offenders and will be barred from holding public office for three years.
Key election facts
- Date: Sunday, October 26, 2025
- Voting hours: 8 a.m. – 6 p.m.
- System: Paper Ballot System (BUP)
- Seats contested: 24 senators, 127 deputies
- First national election with BUP
- Main provinces: Buenos Aires, Córdoba, Santa Fe, Mendoza, CABA
- Eligible voters: Over 35 million Argentinians
A political test for all parties
These midterm elections serve as a plebiscite for Milei, who aims to demonstrate continued social support despite economic adjustments and institutional tensions.
Fuerza Patria seeks to confirm the resurgence of peronism after the September 7 elections, while Provincias Unidas aims to establish itself as a credible federal alternative.
The results will mark the start of a new political phase in Argentina, potentially reshaping alliances, strategies, and leadership ahead of the 2027 presidential elections.