New Delhi, Oct. 27 -- Argentina's libertarian President Javier Milei secured decisive victories in key districts across the country in Sunday's midterm elections, clinching a crucial vote of confidence that strengthens his hand to push forward his radical free-market reforms - an experiment backed with billions of dollars in U.S. support from the Trump administration.

Milei's governing party, La Libertad Avanza, captured 40.84% of the national vote in elections to renew almost half of the lower house of Congress, according to tallies reported by local media citing official electoral data. The figure significantly exceeded analysts' projections, marking a clear show of strength for the government halfway through its term.

Preliminary res...