Javier Milei, born October 22, 1970, in Buenos Aires, Argentina, is a right-wing libertarian economist and politician who has served as President of Argentina since December 10, 2023.[1][2] He earned a degree in economics from the University of Belgrano, along with master's degrees from the Institute of Economic and Social Development and Torcuato Di Tella University, where he shifted from Keynesian views to Austrian and libertarian theories.[1][2][6] Milei's professional career included roles as a senior economist at HSBC Argentina, head economist at Máxima AFJP—a private pension fund—and financial analyst for Corporación América under billionaire Eduardo Eurnekian.[1][2][6] He gained fame in the 2010s as a outspoken television pundit, criticizing Argentina's political elite for hyperinflation, currency devaluation, and poverty amid 140% annual inflation and 40% poverty rates in 2023.[1][3][4] Entering politics in 2021, Milei founded La Libertad Avanza and won a seat in the Chamber of Deputies for Buenos Aires, where he raffled his salary monthly to supporters.[1][3] In 2023, riding voter frustration, he triumphed in the presidential election, winning 21 of 24 districts and defeating Sergio Massa by a double-digit margin.[1][2][3] As president, Milei pursued "shock therapy" reforms inspired by Carlos Menem's 1989-1999 neoliberal agenda, including deregulation and fiscal austerity, contrasting gradualism under Mauricio Macri.[3][4] By July 2024, his government passed key legislation and secured deals with provincial governors.[3] Two years into office by late 2025, La Libertad Avanza secured 41% in October 2025 congressional elections, gaining the largest parliamentary bloc with 95 members despite earlier corruption allegations against allies.[5] Milei remains a confrontational figure, known for his media presence and narrow but dedicated base, primarily young males, amid ongoing economic challenges.[1][3][5]