Who is Gustavo Petro? Colombia's leftist leader at center of a US trade dispute

Colombian President Gustavo Petro faced a diplomatic clash with the US after refusing to allow planes carrying deported Colombians to land. The crisis saw President Trump threatening tariffs on Colombian goods, but Petro eventually relented. Petro, a former guerrilla, has had a controversial political career, including his time as Bogotá’s mayor and fluctuating approval ratings since taking office as Colombia's first left-wing president.