SAN JOSE, Costa Rica (AP) — Laura Fernández was sworn in Friday as president of Costa Rica alongside her predecessor, outgoing President Rodrigo Chaves, an ally of U.S. President Donald Trump who will serve dual roles as her minister of the presidency and minister of finance. Fernández, a political scientist who is the second woman to lead the Central American country, promises a seamless continuation of the political movement established by Chaves. His appointments in the new administration grant him an additional four years of legal immunity, shielding him from several investigations into alleged corruption led by the Public Prosecutor’s Office and the Supreme Electoral Tribunal. One of the primary responsibilities of Costa Rica’s minister of the presidency is to mediate between the executive branch and the Legislative Assembly. The move to keep Chaves in the administration is unprecedented in Costa Rican politics and will offer the outgoing leader incredible sway over the next government.…