Argentina heads to the polls this Sunday in a midterm election widely viewed as a referendum on President Javier Milei’s economic “shock therapy” and his commitment to fiscal austerity. The libertarian leader’s sweeping reforms have curbed inflation and delivered a rare fiscal surplus, drawing praise from investors and U.S. President Donald Trump, whose administration recently offered Argentina a $20 billion currency swap lifeline. However, Milei’s approval rating has dropped below 40%, signaling public fatigue with the painful cost of his economic overhaul.
Voters will decide half of the Chamber of Deputies’ 127 seats and a third of the Senate’s 24 seats. The Peronist opposition, which holds the largest minority in Congress, faces significant losses if Milei’s La Libertad Avanza party performs well. The province of Buenos Aires, Argentina’s most populous region, will be the key battleground. Analysts suggest that surpassing 35% of the national vote would signal growing momentum for Milei’s movement, while reaching 40% would mark a major political breakthrough.
A strong result would strengthen Milei’s hand in Congress, allowing him to advance new labor and tax reforms and defend against opposition attempts to override his vetoes—something lawmakers have done recently on bills supporting universities, pediatric care, and disability programs. To maintain control, Milei’s bloc must secure roughly one-third of both chambers, likely requiring alliances with Mauricio Macri’s centrist PRO party.
Despite corruption allegations involving close associates and a drop in popularity, Milei’s party is expected to expand its representation nationwide. As political consultant Facundo Cruz noted, “It will inevitably increase its seats—the question is, by how much?” The outcome will determine whether Milei’s radical economic vision continues gaining traction or faces growing resistance from weary Argentines.