Pope Francis was due to meet Javier Milei, the recently elected president of Argentina, the pope’s home country, for the first time on Sunday. Milei, a former professor of economics who has made a name for himself with his libertarian policies, is in Rome for the canonization of Mama Antula, an 18th century Argentine nun. Francis will lead the ceremony in St Peter’s on Sunday morning. He has invited Milei, 53, to a private audience on Monday. Francis, 87, plans to visit Argentina for the first time since he assumed the papacy in 2013 in the second half of this year. Relations between the two h…