(FILES) Colombian President Gustavo Petro speaks during a meeting with members of the Colombian diaspora at the Martin Luther King Jr. Memorial Library in Washington, DC, on February 5, 2026. Colombian President Gustavo Petro ended on April 21, 2026, the peace negotiations with one of the country's main guerrilla groups, led by 'Calarca', marking another setback for his peace policy ahead of his departure from office in August. (Photo by Oliver Contreras / AFP via Getty Images)