2023 Argentine general election

General elections were held in Argentina on 22 October 2023 to elect the president, vice president, members of the National Congress, and the governors of most provinces. As no presidential candidate won a majority in the first round, a runoff was held on 19 November, in which Javier Milei defeated Sergio Massa to become President of Argentina. Incumbent president Alberto Fernández and incumbent vice president and former president Cristina Fernández de Kirchner, despite both being eligible for a second, consecutive term, did not seek re-election.

Advancing to the runoff, Massa of the ruling Union for the Homeland unexpectedly came in first place, winning 36% of the vote, against Milei of the Liberty Advances, who came in second place, with 30% of the vote. Massa's victory in the first round was seen as an upset because of the severe inflation that took place during Massa's tenure as Minister of Economy, as well as Milei's lead in polls up to that point.

In the runoff Milei defeated Massa with 55.7% of the vote, the highest percentage of the vote since Argentina's transition to democracy. Milei received over 14 million votes, which was the highest ever vote total in Argentina's history. In a surprise reversal of the first round, Milei outperformed polls, which had been calling for a much closer race. Massa conceded defeat shortly before the official results were published. Milei would later be sworn in as President of Argentina on 10 December 2023.

Observers generally saw Milei's win as a sign more of discontent with the status quo than support for his politics, and his victory was likened to that of Donald Trump in the United States and Jair Bolsonaro's in Brazil.