BUENOS AIRES, Argentina (AP) — Argentina’s libertarian President Javier Milei won decisive victories in key districts in midterm elections Sunday, clinching a crucial vote of confidence that strengthens his ability to carry out his radical free-market experiment with billions of dollars in backing from the Trump administration. In the election widely seen as a referendum on Milei’s past two years in office, his upstart La Libertad Avanza party scored over 40% of votes compared with 31% for the