Vice President Kamala Harris finds herself navigating strained relations with the leaders of Central American countries that have produced a surge of migrants to the U.S., vastly complicating her assignment to curb a growing humanitarian crisis on the southwest border.
Most would-be immigrants are from the so-called Northern Triangle –- Guatemala, Honduras and El Salvador -– and their economies are tied to billions of dollars of annual remittances from their citizens working in the U.S.
