President Biden and Mexican President Andrés Manuel López Obrador will hold a bilateral meeting Tuesday as both administrations face a surge in migration. They are expected to announce multiyear, joint projects to modernize border infrastructure, senior administration officials said. They will also direct their teams to create a task force to combat criminal organizations and curb the flow of fentanyl, the U.S. officials said, as well as a working group focused on labor, migration pathways and worker protections.