As border apprehensions of undocumented migrants reach record levels, the Biden and López Obrador (AMLO) administrations strive to collaborate to reduce the flow and improve the treatment of those who reach the Mexico-U.S. border. Following the Biden administration’s recent acknowledgement of Mexico’s concerns about the treatment of migrants, the López Obrador administration accepted resumption of the Migration Protection Protocols (aka “Remain in Mexico”), which the Biden administration sought unsuccessfully to terminate. Collaboration is also underway to address the drivers of migration from Central America’s Northern Triangle. Expansion of Mexico’s tree-planting “Sembrando Vida” program may provide immediate cash transfers while the new “Sembrando Oportunidades” program provides skills development opportunities. Until these efforts bear fruit, sizable groups of migrants seeking to cross Mexico in caravans offer AMLO a bargaining chip for use in other areas of the bilateral relationship.