FILE - Bolivian President Luis Arce, left, and former President Evo Morales take part in the "March for the Homeland," in El Alto, Bolivia, Nov. 29, 2021. The Supreme Electoral Court annulled on Thursday, May 23, 2024, a party convention of Bolivia’s ruling party, the Movement Toward Socialism or MAS, amid a rift between Morales, the former leader of MAS, and Arce, his political heir. (AP Photo/Juan Karita, File)