In Uruguay, voters will cast ballots in a presidential runoff next month after no candidate obtained sufficient support to claim victory in Sunday’s election. Yamandú Orsi, a center-left former mayor and history teacher, won the most votes but did not reach the 50% threshold to outright defeat Álvaro Delgado of the ruling center-right Partido Nacional. Orsi is an ally of former President José “Pepe” Mujica, an ex-guerrilla turned politician who is credited with turning Uruguay into South America’s most socially liberal country.