This was the first election in which the new single paper ballot system was introduced for national elections. The new system replaces individual party ballots with a unified paper listing all candidates. Parties had to print their own ballots in the previous system, leading towards bias towards wealthier parties as well as the ability to bury opponent parties in a sea of ballots. Nicolás Mayoraz, president of the Constitutional Affairs Committee, hailed the law as a victory for democracy. He claimed it would end corrupt practices like ballot theft. LLA and PRO and some Peronist parties were in favour of this reform, while the opposition coalition
Homeland Force were against it. Data released at 1 pm on election day showed that 23% of the electorate had cast their ballots by 12 pm, a substantial drop from the
2023 Argentine general election in which voter turnout was 30.3% by the same time, although midterm elections (in which the office of President is not up for election) typically have lower turnout. At 9:25pm, results were published. Despite disapproval ratings reaching 53% in a September poll, Milei's LLA finished in first place with 40.84% of the vote, and the largest opposition party, the
Peronist coalition Homeland Force, finished in second place with 31.63% of the vote. Turnout remained lower than usual, at 67.85% of the 36million eligible voters, the lowest tally for a national election since the return of democracy with the
1983 Argentine general election. Prior polling forecasted LLA attaining 30 to 35% of the vote and the Homeland Force on about the same support. The elections were a decisive victory for Milei, whose party rebounded despite several political setbacks and unfavourable polls in the previous months. The surprise victory was highlighted by LLA's lead in
Buenos Aires Province, a Peronist stronghold that previously had voted for the Peronists by a substantial margin in the
2025 Buenos Aires provincial election held the previous month. According to political scientist Carlos Fara, the rejection of Peronism "carried more weight" than the recent political and corruption scandals surrounding Milei’s government, the run on the
Argentine peso and "the fatigue with the President’s leadership style". This was reflected in the low voter turnout. The result allowed Milei to proceed with his libertarian program. Notably, LLA won just over half of the Chamber of Deputies seats up for election, almost tripling their number of seats and bringing their total to over one-third of the seats in the chamber. This means that opposition parties can no longer obstruct his agenda by overriding his presidential vetoes through a two third majority, although LLA would still need support from other parties to pass its legislation. == Reactions ==