Buenos Aires [Argentina], December 11 (ANI): Javier Milei sworn in as Argentina’s new president on Sunday, sealing the ascent of a political newcomer who gained popularity by calling for economic reforms, CNN reported. Milei is an economist and former political commentator who, during his election campaign, spoke about his intent to slash spending, according to CNN report. Javier Milei’s predecessor, Alberto Fernandez, presided over the swearing-in ceremony before Argentina’s Congress in Buenos Aires. Milei took the oath before giving his first speech as president, vowing to bring about sweepi…